Coherent Cerenkov Radiation

coherent transition radiation

coherent edge radiation

Coherent tansition radiation

High power terahertz wave

RF window

Klystron

Cryogenic photocathode RF-Gun

RF gun

Coherent THz light souce

X線イメージング

coherent X-ray radiation

Parametric X-ray Radiation

自由電子レーザー

電子線形加速器

単色X線源

波長可変

Terahertz Vortex

electron linac

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electronic devices and equipment

Energy, Quantum beam science, Quantum beam science

Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics, Elementary Particle/Atomic Nucleus/Cosmic Ray/Space Physics

Apr. 2020 - Present
Nihon University, Institute of Quantum Science, Associate Professor

Apr. 2023 - Mar. 2024
Japan Synchrotron Radiation Research Institute, 研究プロジェクト推進室 先端加速器技術開発グループ, 客員研究員

Apr. 2017 - Mar. 2020
Nihon University, Institute of Quantum Science, Assistant Professor

Apr. 2012 - Mar. 2017
Nihon University, Institute of Quantum Science, Research Assistant

Jul. 2011 - Mar. 2012
Accuthera Inc., R & D Division

Apr. 2011 - Jul. 2011
Foundation for Advancement of International Science, Senior Research Scientist

Jun. 2009 - Mar. 2011
HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION, KEK, Accelerator Laboratory, fellow researcher

Apr. 2009 - May 2009
NIHON UNIVERSITY, RESEARCH INSTITUTE OF SCIENCE & TECHNOLOGY, Distinguished Senior Scientist

Apr. 2005 - Mar. 2009
Nihon University, Advanced Research Institute for the Sciences and Humanities, Research Assistant

Oct. 2004 - Mar. 2005
Nihon University, College of Science and Technology, ポストドクター

Apr. 2001 - Sep. 2004
Nihon University, Graduate School, Division of Science and Engineering, Quantum Science and Technology

Apr. 1999 - Mar. 2001
Nihon University, Graduate School, Division of Science and Engineering, Quantum Science and Technology

Apr. 1995 - Mar. 1999
Nihon University, Faculty of Science and Engineering, Department of Physics

Oct. 2023 - Present

Oct. 2021 - Present

Dec. 2022 - Nov. 2023

Jun. 2023
The Japan Society of Infrared Science and Technology, The 9th Best Paper Award, Journal of the Japan Infrared Science and Technology
Development of coherent edge radiation sources at Laboratory for Electron Beam Research and Application in Nihon University
Takeshi Sakai;Yasushi Hayakawa;Yoske Sumitomo;Norihiro Sei

★Observation of terahertz coherent edge radiation amplified by infrared free-electron laser oscillations
Norihiro Sei; Takeshi Sakai; Yasushi Hayakawa; Yoske Sumitomo; Kyoko Nogami; Toshinari Tanaka; Ken Hayakawa
Scientific Reports, Feb. 2021, Refereed, Not invited

Beam characterization of mid-infrared free electron laser to drive high-harmonic generation
Keigo Kawase; Heishun Zen; Takeshi Sakai; Yasushi Hayakawa; Hideaki Ohgaki; Ryoichi Hajima
Japanese Journal of Applied Physics, Jul. 2024

Radiation-induced demagnetization of the undulator magnet-array for infrared-FEL and the repair dealing at Nihon University
Yasushi Hayakawa; Takeshi Sakai
Journal of the Japanese Society for Synchrotron Radiation Research, May 2023, Refereed

Dependence of Pit Formation in Hard Tissue of Human Teeth on Free Electron Laser Pulse Structures
Yuma Sasamoto; Tetsuro Kono; Takeshi Sakai
International Journal of Oral-Medical Sciences, Apr. 2023

Diffraction-enhanced Imaging of Human Tooth Using Highly Spatial Coherent Parametric X-ray Generated by a Small LINAC System
Tetsuro Kono; Toshiro Sakae; Yumiko Takahashi; Takeshi Sakai; Kyoko Nogami; Ken Hayakawa; Arata Watanabe; Toshikazu Uchiyama; Yukie Takamura; Yuuya Togashi; Takahiro Ogawa; Toshinari Tanaka; Yasushi Hayakawa; Hiroyuki Okada
International Journal of Oral-Medical Sciences, Dec. 2022

Application of Free Electron Laser in Dentistry -From Research in LEBRA-FEL and KU-FEL-
KONO Tetsuro; SAKAE Toshiro; SAKAI Takeshi; ZEN Heishun; OHGAKI Hideaki; HAYAKAWA Yasushi and OKADA Hiroyuki
Journal of Japan Laser Processing Society, Oct. 2022, Refereed

A Ground Experimental Approach Toward Understanding Mysterious Astrophysical Fast Radio Bursts
Y. Sumitomo; T. Asai; S. Kisaka; H. Koguchi; K. Kusaka; R. Yanagi; Y. Onishi; Y. Hayakawa; D. Kobayashi; S. Kumagai; T. Sakai; T. Seki
International Linear Accelerator Conference (31st), Sep. 2022, Not refereed, Not invited

Degradation of Lignin by Infrared Free Electron Laser
Takayasu Kawasaki; Heishun Zen; Takeshi Sakai; Yoske Sumitomo; Kyoko Nogami; Ken Hayakawa; Toyonari Yaji; Toshiaki Ohta; Takashi Nagata and Yasushi Hayakawa
Polymers, Jun. 2022, Refereed, Not invited

Terahertz Imaging for Formalin Fixed Malignant Liver Tumors Using Two-Band Beamline at the Accelerator Facility of Nihon University
Yusuke Kawashima; Suemitsu Masaaki; Kayo Kuyama; Takeshi Sakai; Yasushi Hayakawa; Takashi Kaneda; Norihiro Sei
Applied Sciences, Feb. 2022

Development of coherent edge radiation sources at Laboratory for Electron Beam Research and Application in Nihon University
Takeshi SAKAI; Yasushi HAYAKAWA; Yoske SUMITOMO; Norihiro SEI
Journal of the Japan Infrared Science and Technology, Feb. 2022, Refereed
Lead

Current status of the development of a linac to inject ultra-short pulse electron beams into laser plasma wake fields
Shinichi Masuda; Takemasa Masuda; Toshinari Tanaka; Takeshi Sakai; Yuya Koshiba; Seiya Otsuka; Kazuyuki Sakaue; Noritaka Kumagai; Yuji Otake
Proceedings of the 18th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2021, Not refereed

Status of 125 MeV electron linac and light sources at LEBRA in Nihon University
Kyoko Nogami; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Ken Hayakawa; Toshinari Tanaka; Norihiro Sei; Hiroshi Ogawa; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Tsuyoshi Suwada; Shigeki Fukuda; Atsushi Enomoto; Satoshi Ohsawa; Shigeru Yamamoto; Takakazu Shintomi
Proceedings of the 18th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2021, Not refereed

Toward Understanding of Astrophysical Fast Radio Bursts from An Accelerator and Plasma Experiment
Yoske Sumitomo; Tomohiko Asai; Shota Kisaka; Takeshi Sakai; Yasushi Hayakawa; Shiomi Kumagai; Daichi Kobayashi; Taichi Seki; Shigeru Inagaki; Norita Kawanaka; Haruhisa Koguchi; Norihiro Sei
Proceedings of the 18th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2021, Not refereed

Research and Development of Terahertz Sources at LEBRA-PXR Beam Line in Nihon University
Takeshi Sakai; Norihiro Sei; Yasushi Hayakawa; Yoske Sumitomo; Ken Hayakawa; Toshinari Tanaka; Kyoko Nogami; Yumiko Takahashi; Hiroto Saito; Takumi Hirohara
Proceedings of the 18th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2021, Not refereed
Lead

Current status of the LEBRA-PXR source at Nihon University and the plan of the evolution
Yasushi Hayakawa; Ken Hayakawa; Kyoko Nogami; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Toshinari Tanaka
Proceedings of the 18th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2021, Not refereed

Toward Mid-IR FEL Pulse Stacking for Peak Power Enhancement
Yoske Sumitomo; Takeshi Sakai; Yasushi Hayakawa (CST; Nihon U.); Keigo Kawase; Ryoichi Hajima
Proceedings of the 18th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2021, Not refereed

Design and Construction of an Intense Terahertz-Wave Source Based on Coherent Cherenkov Radiation Matched to Circle Plane Wave
N. Sei; H. Ogawa; K. Hayakawa; Y. Hayakawa; K. Nogami; T. Sakai; Y. Sumitomo; Y. Takahashi; T. Tanaka; T. Takahashi
The 12th International Particle Accelerator Conference - IPAC’21, Aug. 2021, Not refereed, Not invited

Development of a Linac for Injection of Ultrashort Electron Bunches Into Laser Plasma Electron Accelerators
S. Masuda; N. Kumagai; T. Masuda; Y. Otake; Y. Koshiba; S. Otsuka; T. Sakai; T. Tanaka; K. Sakaue
The 12th International Particle Accelerator Conference - IPAC’21, Aug. 2021, Not refereed, Not invited

Toward THz Coherent Undulator Radiation Experiment with a Combination of Velocity Bunchings
Y. Sumitomo; K. Hayakawa; Y. Hayakawa; K. Nogami; T. Sakai; T. Tanaka
The 12th International Particle Accelerator Conference - IPAC’21, Aug. 2021, Not refereed, Not invited

Effect of shut-off of RF window breakdown during the long-pulse operation of S-band klystron
Toshinari Tanaka; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa; Yoske Sumitomo; Yumiko Takahashi; Kyoko Nogami
Proceedings of the 17th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2020, Not refereed, Not invited

Development of coherent THz quasi-monochromatic undulator radiations at Nihon University
Yoske Sumitomo; Takeshi Sakai (Nihon U.); Norihiro Sei (AIST); Ken Hayakawa; Yasushi Hayakawa; Ayumu Kurosawa; Kyoko Nogami; Hiroki Okazaki; Toshinari Tanaka (Nihon U.)
Proceedings of the 17th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2020, Not refereed, Not invited

Current status of a test stacking at enhancement cavity for IR-FEL oscillator
Ayumu Kurosawa; Yoske Sumitomo (Nihon U.); Keigo Kawase; Ryoichi Hajima (QST); Yasushi Hayakawa; Takeshi Sakai (Nihon U.)
Proceedings of the 17th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2020, Not refereed, Not invited

Development of coherent edge radiation source at LEBRA in Nihon University
Takeshi Sakai (LEBRA; Nihon University); Norihiro Sei (AIST); Yasushi Hayakawa; Yoske Sumitomo; Ken Hayakawa; Toshinari Tanaka; Kyoko Nogami; Yumiko Takahashi (LEBRA; Nihon University); Hiroki Okazaki; Ayumu Kurosawa; Hiroto Saito; Takumi Hirohara (CST; Nihon University)
Proceedings of the 17th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2020, Not refereed, Not invited
Lead

Development of a radiation monitor for undulator demagnetization at Nihon University
Hiroki Okazaki; Ayumu Kurosawa; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Ken Hayakawa; Kyoko Nogami; Toshinari Tanaka (Nihon U.)
Proceedings of the 17th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2020, Not refereed, Not invited
Lead

Status report of 125 MeV electron linac and light sourde development at Nihon University
Kyoko Nogami; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Ken Hayakawa; Toshinari Tanaka (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Tsuyoshi Suwada; Shigeki Fukuda; Atsushi Enomoto; Satoshi Ohsawa; Shigeru Yamamoto; Takakazu Shintomi (KEK)
Proceedings of the 17th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2020, Not refereed, Not invited
Lead

Laser Processing of Fiber Biopolymers by using Infrared Free Electron Laser Combined with ESI-MS Analysis
Takayasu Kawasaki; Takeshi Sakai; Yoske Sumitomo; Ken Hayakawa; Kyoko Nogami; Heishun Zen; Akinori Irizawa; Yasushi Hayakawa
American Society for Mass Spectrometry 2020 Reboot, Jun. 2020, Refereed, Not invited

Evaluation of Bunch Length by Measuring Coherent Synchrotron Radiation with a Narrow-Band Detector at LEBRA
Takeshi Sakai; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Kyoko Nogami; Norihiro Sei
Condensed Matter, May 2020, Refereed, Not invited

Cellulose Degradation by Infrared Free Electron Laser
Takayasu Kawasaki; Takeshi Sakai; Heishun Zen; Yoske Sumitomo; Kyoko Nogami; Ken Hayakawa; Toyonari Yaji; Toshiaki Ohta; Koichi Tsukiyama; and Yasushi Hayakawa
Energy & Fuels, May 2020, Refereed, Not invited

Tunable and monochromatic light sources at LEBRA in Nihon University
Y. Hayakawa; I. Sato; K. Hayakawa; T. Tanaka; A. Mori; T. Kuwada; T. Sakai; K. Nogami; K. Nakao; M. Inagaki
Proceedings of NANOBEAM 2005, 36th ICFA Advanced Beam Dynamics Workshop, 2020

Research and Development of Attosecond VUV and X-ray Sources Driven by Mid-Infrared FEL Oscillators
Ryoichi Hajima; Ryoji Nagai; Keigo Kawase; Hideaki Ohgaki; Heishun Zen; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Miho Shimada; Tsukasa Miyajima
OSA High-brightness Sources and Light-driven Interactions Congress 2020 (EUVXRAY, HILAS, MICS), 2020

Coherent edge radiation sources in Linac-based infrared free-electron laser facilities
N. Sei; H. Ogawa; T. Tanaka; Y. Hayakawa; T. Sakai; Y. Sumitomo; K. Hayakawa; K. Nogami; H. Ohgaki; H. Zen
Proceedings of the 29th Linear Accelerator Conference, LINAC 2018, 2020, Not refereed, Not invited

Simulation of Short-Pulse Generation from A Dynamically Detuned IR-FEL Oscillator and Pulse Stacking at An External Cavity
Yoske Sumitomo; Ryoichi Hajima; Yasushi Hayakawa; Takeshi Sakai
Journal of Physics: Conference Series, Dec. 2019, Refereed, Not invited

Development of coherent edge radiation source at FEL beam line in LEBRA
Takeshi Sakai (LEBRA; Nihon University); Norihiro Sei (AIST); Yasushi Hayakawa; Yoske Sumitomo; Kyoko Nogami; Toshinari Tanaka; Ken Hayakawa; Yumiko Takahashi (LEBRA; Nihon University); Hiroshi Ogawa (AIST); Sou Uehara; Masaki Kimura; Hiroki Okazaki; Ayumu Kurosawa (LEBRA; Nihon University)
Proceedings of the 16th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2019, Not refereed, Not invited
Lead

Development of a high-repetition-rate attosecond X-ray source based on a free-electron laser
Ryoichi Hajima; Keigo Kawase; Ryoji Nagai (QST); Hideaki Ogaki; Heishun Zen (Kyoto U.); Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo (Nihon U.); Miho Shimada; Tsukasa Miyajima (KEK)
Proceedings of the 16th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2019, Not refereed, Not invited

Current status of imaging experiments using LEBRA PXR source
Yasushi Hayakawa; Ken Hayakawa; Kyoko Nogami; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Toshinari Tanaka (LEBRA; Nihon U. )
Proceedings of the 16th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2019, Not refereed, Not invited

Fundamental design of a LINAC to inject ultra-short pulse electron beams into laser plasma wake fields
Yuji Otake; Takemasa Masuda; Shinichi Masuda (Japan Synchrotron Radiation Research Institute); Toshinari Tanaka; Takeshi Sakai (Nihon University); Yuya Koshiba; Seiya Otsuka (Waseda University); Kazuyuki Sakaue (The University of Tokyo); Noritaka Kumagai (Japan Synchrotron Radiation Research Institute)
Proceedings of the 16th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2019, Not refereed, Not invited

Status Report of 125 MeV Electron Linac at Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Tsuyoshi Suwada; Shigeki Fukuda; Atsushi Enomoto; Satoshi Ohsawa; Shigeru Yamamoto; Takakazu Shintomi; Sato Isamu (KEK)
Proceedings of the 16th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2019, Not refereed, Not invited

Application of Infrared FEL Oscillators for Producing Isolated Attosecond X-Ray Pulses via High-Harmonic Generation in Rare Gases
R. Hajima; K. Kawase; R. Nagai; Y. Hayakawa; T. Sakai; Y. Sumitomo; T. Miyajima; M. Shimada; H. Ohagaki; H. Zen
FEL2019 TUD02, Aug. 2019, Not refereed, Invited

Development of An Enhancement Cavity for Pulse Stacking from IR-FEL Oscillator
Y. Sumitomo; K. Kawase; R. Hajima; A. Kurosawa; Y. Hayakawa; T. Sakai
PASJ2019 THPI023, Jul. 2019, Not refereed, Not invited

Simulation of Electric and Thermal Behavior of Cryogenic Three-cell Copper Accelerating Cavity for High Gradient Experiments
T. Tanaka; K. Hayakawa; Y. Hayakawa; K. Nogami; T. Sakai; Y. Sumitomo; Y. Takahashi
IPAC2019 MOPTS052, May 2019, Not refereed, Not invited

Research of Coherent Edge Radiation Generated by Electron Beams Oscillating Free-Electron Lasers
N. Sei; H. Ogawa; K. Hahayaka; Y. Hayakawa; K. Nogami; T. Sakai; Y. Sumitomo; Y. Takahashi; T. Tanaka; H. Ohgaki; H. Zen
IPAC2019 TUPRB039, May 2019, Not refereed, Not invited

Development of Coherent Terahertz Wave Sources and Transport Systems at LEBRA Linac
T. Sakai; K. Hayakawa; Y. Hayakawa; K. Nogami; Y. Sumitomo; T. Tanaka; H. Ogawa; N. Sei
IPAC2019 TUPRB040, May 2019, Not refereed, Not invited

Performance of K-edge subtraction tomography as an application of parametric x-ray radiation
Y. Hayakawa; K. Hayakawa; K. Nogami; T. Sakai; I. Sato; Y. Sumitomo; Y. Takahashi; T. Tanaka
Phys. Rev. Accel. Beams 22, 024701, Feb. 2019, Refereed, Not invited

Electrical Signals of the Crayfish’s Compound Eye Stimulated by Mid-Infrared Free Electron Laser
Fumio SHISHIKURA; Heishun ZEN; Ken HAYAKAWA; Yoshimasa KOMATSUZAKI; Yasushi HAYAKAWA; Takeshi SAKAI; Kyoko NOGAMI; Yumiko TAKAHASHI; Toshinari TANAKA; Toshiteru KII; Hideaki OHGAKI
Journal of the Japan Society of Infrared Science and Technology, 2019, Refereed, Not invited

High Power Coherent Terahertz Wave Sources at LEBRA Linac in Nihon University
T. Sakai ; N. Sei ; T Tanaka ; Y. Havakawa ; Y. Sumitomo ; K. Havakawa ; K. Nogami ; H. Ogawa
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Oct. 2018, Refereed, Not invited
Lead

Project of an Intense Terahertz-Wave Source based on Coherent Cherenkov Radiation Matched to Circle Plane Wave
N. Sei; T. Sakai ; T. Tanaka ; Y. Hayakawa ; Y. Sumitomo ; Y. Takahashi ; K. Hayakawa ; K. Nogami
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Oct. 2018, Refereed, Not invited

Development of High Power Coherent Terahertz Wave Sources at Lebra 125 MeV Linac in Nihon University
T. Sakai; K. Hayakawa; Y. Hayakawa; K. Nogami; Y. Sumitomo; Y. Takahashi; T. Tanaka; H. Ogawa; N. Sei
Proceedings of LINAC2018, Oct. 2018, Not refereed, Not invited

Simulation for THz coherent undulator radiation from combination of velocity bunchings
Yoske Sumitomo; Ken Hayakawa; Yasushi Hayakawa; Kyoko Nogami; Takeshi Sakai; Yumiko Takahashi and Toshinari Tanaka
Journal of Physics: Conference Series, Oct. 2018, Refereed, Not invited

Developments of High Power Coherent Terahertz Wave Sources at LEBRA Linac in Nihon University
Takeshi Sakai (LEBRA; Nihon University); Norihiro Sei (AIST); Toshinari Tanaka; Yasushi Hayakawa; Yoske Sumitomo; Kyoko Nogami; Yumiko Takahashi; Ken Hayakawa (LEBRA; Nihon University); Hiroshi Ogawa (AIST)
Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2018, Not refereed, Not invited
Lead

Simulation of temperature rise and super-high gradient operation of C-band cryogenic copper cavity
Toshinari Tanaka; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa; Kyoko Nogami; Isamu Sato; Yoske Sumitomo; Yasuyuki Yamada; Takato Yoshida (LEBRA; Nihon University)
Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2018, Not refereed, Not invited

Computed tomography utilizing LEBRA-PXR source at Nihon University
Yasushi Hayakawa; Ken Hayakawa; Kyoko Nogami; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Toshinari Tanaka (LEBRA; Nihon U. )
Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2018, Not refereed, Not invited

Simulation of Zero-Detuning Oscillation from Dynamical Phase Modulation at Nihon U. Oscillator FEL
Yoske Sumitomo; Yasushi Hayakawa; Ken Hayakawa; Kyoko Nogami; Takeshi Sakai; Yumiko Takahashi; Toshinari Tanaka (LEBRA; Nihon U.)
Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2018, Not refereed, Not invited

Status of electron linac operation and THz source development at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Shigeru Yamamoto; Takakazu Shintomi (KEK)
Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2018, Not refereed, Not invited

Simulation for Combination of Velocity Bunchings and Coherent THz Undulator Radiation
Y. Sumitomo; K. Hayakawa; Y. Hayakawa; K. Nogami; T. Sakai; Y. Takahashi; T. Tanaka
IRMMW-THz 2018 18227501, Sep. 2018, Not refereed, Not invited

Mid-Infrared Free-Electron Laser-Evoked Discharge of Crayfish Compound Eyes
Shishikura Fumio; Zen Heishun; Hayakawa Ken; Komatsuzaki Yoshimasa; Hayakawa Yasushi; Sakai Takeshi; Kii Toshiteru; Ohgaki Hideaki
Journal of the Nihon University Medical Association, Jun. 2018, Refereed, Not invited

Simulation for THz Coherent Undulator Radiation from Combination of Velocity Bunchings
Y. Sumitomo; K. Hayakawa; Y. Hayakawa; K. Nogami; T. Sakai; Y. Takahashi; T. Tanaka
Proceedings of IPAC18 (9th International Particle Accelerator Conference, Apr. 2018, Refereed, Not invited

Simulation of pulsed temperature rise in cryogenic copper rf cavity achieving a very high accelerating field
T. Tanaka; K. Hayakawa; Y. Hayakawa; K. Nogami; T. Sakai; Y. Sumitomo
Proceedings of IPAC18 (9th International Particle Accelerator Conference, Apr. 2018, Refereed, Not invited

Compact and intense parametric x-ray radiation source based on a linear accelerator with cryogenic accelerating and decelerating copper structures
J. Hyun; M. Satoh; M. Yoshida; T. Sakai; Y. Hayakawa; T. Tanaka; K. Hayakawa; I. Sato; K. Endo
Physical Review Accelerators and Beams, Jan. 2018, Refereed, Not invited

Development and Application of Near-infrared FEL at LEBRA in Nihon University
田中俊成,境武志,早川恭史,早川建,野上杏子(日本大学量子科学研究所電子線利用研究施設)
日本赤外線学会誌, Jan. 2018, Refereed, Not invited

Possibility of high quality electron beam extraction by high electric field in C-band 20-K cooled RF gun
Toshinari Tanaka; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa; Kyoko Nogami; Yosuke Sumitomo; Yasuyuki Yamada; Takato Yoshida; Isamu Sato (LEBRA; Nihon University)
Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan, Dec. 2017, Not refereed, Not invited

Simulation of velocity bunching optimization for bright THz light source from oscillator FEL
Yoske Sumitomo; Ken Hayakawa; Yasushi Hayakawa; Kyoko Nogami; Takeshi Sakai; Toshinari Tanaka (IQS; Nihon U.)
Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan, Dec. 2017, Not refereed, Not invited

Research and development of the high power THz light sources at LEBRA in Nihon University
Takeshi Sakai; Toshinari Tanaka; Yasushi Hayakawa; Yoske Sumitomo; Ken Hayakawa; Kyoko Nogami (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST)
Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan, Dec. 2017, Not refereed, Not invited
Lead

Optimization of multi-cell structure for cryo photocathode RF-gun
Yasuyuki Yamada; Takato Yoshida; Toshinari Tanaka (Graduate School of Science and Technology; Nihon University); Takeshi Sakai; Kyoko Nogami; Ken Hayakawa; Yasushi Hayakawa; Yousuke Sumitomo (LEBRA; Nihon University)
Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan, Dec. 2017, Not refereed, Not invited

Status of electron linac and light source at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Takakazu Shintomi; Shigeru Yamamoto (KEK)
Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan, Dec. 2017, Not refereed, Not invited

Simultaneous K-edge subtraction tomography for tracing strontium using parametric X-ray radiation
Y. Hayakawa; K. Hayakawa; T. Kaneda; K. Nogami; T. Sakae; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Jul. 2017, Refereed, Not invited

Development of the High Power Terahertz Light Sources at LEBRA Linac in Nihon University
T. Sakai; T. Tanaka; Y. Hayakawa; K. Hayakawa; K. Nogami; N. Sei; H. Ogawa
Proceedings of IPAC17 (8th International Particle Accelerator Conference, May 2017, Not refereed, Not invited
Lead

Measurement of Electron-bunch Length Using Coherent Radiation in Infrared Free-electron Laser Facilities
N. Sei; H. Ogawa; T. Tanaka; Y. Hayakawa; T. Sakai; K. Hayakawa; K. Nogami; H. Ohgaki; H. Zen
Proceedings of IPAC17 (8th International Particle Accelerator Conference, May 2017, Not refereed, Not invited
Corresponding

Millijoule terahertz coherent transition radiation at LEBRA
Norihiro Sei; Hiroshi Ogawa; Takeshi Sakai; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Kyoko Nogami
JAPANESE JOURNAL OF APPLIED PHYSICS, Mar. 2017, Refereed, Not invited

Characterization of cold model cavity of cryocooled C-band 2.6-cell RF gun at 20 K
T. Tanaka; T. Sakai; K. Nogami; K. Hayakawa; Y. Hayakawa; K. Nakao; K. Takatsuka; M. Fukuda; D. Satoh; T. Takatomi; N. Terunuma; J. Urakawa; M. Yoshida
8TH INTERNATIONAL PARTICLE ACCELERATOR CONFERENCE (IPAC 2017), 2017, Refereed, Not invited

Low-Temperature Test of 20K C-Band 2.6 Cell RF-Gun Test Cavity with Input Coupler
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Kento Takatsuka; Ken Hayakawa; Yasushi Hayakawa (LEBRA; Nihon University); Toshikazu Takatomi; Daisuke Satoh; Masafumi Fukuda; Mitsuhiro Yoshida; Nobuhiro Terunuma; Juniji Urakawa (KEK)
Proceedings of the 13th Annual Meeting of Particle Accelerator Society of Japan, Nov. 2016, Refereed, Not invited
Lead

DEVELOPMENT OF THE SYSTEM SUPERPOSING THZ-WAVES ONTO AN X-RAY BEAM AT THE LEBRA-PXR BEAMLINE
Yasushi Hayakawa; Ken Hayakawa; Keisuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihin Univ.); Norihiro Sei (AIST); Toshinari Tanaka (LEBRA; Nihin Univ.)
Proceedings of the 13th Annual Meeting of Particle Accelerator Society of Japan, Nov. 2016, Not refereed, Not invited

Status of Electron Linac and THz Source Development at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Shigeru Yamamoto (KEK)
Proceedings of the 13th Annual Meeting of Particle Accelerator Society of Japan, Nov. 2016, Not refereed, Not invited

Low-Temperature Properties of 2.6-Cell Cryogenic C-band RF-gun Cold Model Cavity
T. Sakai; T. Tanaka; K. Nogami; K. Takatsuka; K. Nakao; M. Inagaki; M. Fukuda; T. Takatomi; D. Satoh; N. Terunuma; J. Urakawa; M. Yoshida
Proceedings of LINAC16 (The 28th Linear Accelerator Conference, 25-30 September, 2016, East Lansing, MI, USA), 2016, Not refereed, Not invited

Project on the superposition of beamlines for parametric X-ray radiation and coherent transition radiation in the THz region at LEBRA
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kaneda; K. Nakao; K. Nogami; T. Sakae; T. Sakai; N. Sei; Y. Takahashi; T. Tanaka
XI INTERNATIONAL SYMPOSIUM ON RADIATION FROM RELATIVISTIC ELECTRONS IN PERIODIC STRUCTURES (RREPS2015), 2016, Refereed, Not invited

Proposal of coherent Cherenkov radiation matched to circular plane wave for intense terahertz light source
Norihiro Sei; Takeshi Sakai; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki
PHYSICS LETTERS A, Oct. 2015, Refereed, Not invited

LOW TEMPERATURE PROPERTY OF 2.6-CELL CRYOGENIC PHOTOCATHODE RF-GUN TEST CAVITY
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Kento Takatuka; Ryoko Nagashima; Toshikazu Takatomi; Masashi Fukuda; Junji Urakawa; Mitsyhiro Yoshida; Daisuke Satoh; Ken Hayakawa; Yasushi Hayakawa
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited
Lead

LOW TEMPERATURE PROPERTY OF CRYOGENIC PHOTOCATHODE RF-GUN TEST CAVITY WITH INPUT COUPLER
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Kento Takatuka; Ryoko Nagashima; Toshikazu Takatomi; Masashi Fukuda; Junji Urakawa; Mitsyhiro Yoshida; Daisuke Satoh; Ken Hayakawa; Yasushi Hayakawa
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited
Lead

SIMULATION OF ELECTROMAGINETIC FIELD FOR 20K COOLED PHOTOCATHODE RF GUN
Keisuke Nakao; Toshinari Tanaka; Takeshi Sakai; Kyoko Nogami; Manabu Inagaki; Kento Takatuka; Ryoko Nagashima; Ken Hayakawa; Yasushi Hayakawa; Toshikazu Takatomi; Masashi Fukuda; Mitsyhiro Yoshida; Nobuhiro Terunuma
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited

SIMULATION OF RF-INPUT COUPLER STRUCTURE FOR CRYOGENIC PHOTOCATHODE RF-GUN
Kento Takatuka; Toshinari Tanaka; Takeshi Sakai; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Ken Hayakawa; Yasushi Hayakawa; Nobuhiro Terunuma; Toshikazu Takatomi; Masashi Fukuda; Mitsyhiro Yoshida
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited

Design of wavelength tunable coherent X-ray source and beam loading
Jibong Hyun (SOKENDAI); Mitsuhiro Yoshida; Masanori Satoh (KEK); Takeshi Sakai; Yasushi Hayakawa; Toshinari Tanaka; Ken Hayakawa; Isamu Sato (Nihon University); Katsumi Endo (TOYAMA Co.; Ltd)
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited

CONCEPT DESIGN OF A THz BEAMLINE SUPERIMPOSED ON AN X-RAY BEAMLINE AT LEBRA
Yasushi Hayakawa; Ken Hayakawa; Manabu Inagaki; Keisuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihon U.); Norihiro Sei (AIST); Toshinari Tanaka (LEBRA; Nihon U.)
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited

Behavior of X-ray Topograph for Parametric X-ray Source Using a Wedge-shaped Target Crystal
Manabu Inagaki; Yasushi Hayakawa; Ken Hayakawa; Toshinari Tanaka; Keisuke Nakao; Takeshi Sakai; Kyoko Nogami; Kento Takatsuka; Isamu Sato (LEBRA; Nihon University)
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited

Status of Electron Linac Operation and Light Source at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Manabu Inagaki; Kento Takatsuka; Ryoko Nagashima; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Shigeru Yamamoto (KEK)
Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Not refereed, Not invited

Measurement of a bunch length of a relativistic electron beam using a narrow-band diode detecto in a terahertz region
Norihiro Sei; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Keisuke Nakao; Takeshi Sakai
Jounal of the Japanese Society of Infrared Science and Technology, Aug. 2015, Refereed, Not invited

Element-sensitive computed tomography by fine tuning of PXR-based X-ray source
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kaneda; K. Nakao; K. Nogami; T. Sakae; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Jul. 2015, Refereed, Not invited

Low Temperature Properties of 20 K Cooled Test Cavity for C-band 2.6-cell Photocathode RF Gun
T. Tanaka; M. Inagaki; K. Nakao; K. Nogami; T. Sakai; M. Fukuda; T. Takatomi; J. Urakawa; M. Yoshida; D. Satoh; T. Shintomi
Proceedings of IPAC2015 (The 6th International Particle Accelerator Conference, May 3-8, 2015, Richmond, VA, USA), Jun. 2015, Not refereed, Not invited

RF Input Coupler for 20 K Cooled C-band 2.6-cell Photocathode RF Gun
T. Tanaka; M. Inagaki; K. Nakao; K. Nogami; T. Sakai; M. Fukuda; T. Takatomi; J. Urakawa; M. Yoshida; D. Satoh; T. Shintomi
Proceedings of IPAC2015 (The 6th International Particle Accelerator Conference, May 3-8, 2015, Richmond, VA, USA), Jun. 2015, Not refereed, Not invited

Design of Wavelength Tunable Coherent X-Ray Source
J. Hyun; M. Yoshida; M. Satoh; T. Sakai; Y. Hayakawa; T. Tanaka; K. Hayakawa; I. Sato; K. Endo
Proceedings of IPAC2015 (The 6th International Particle Accelerator Conference, May 3-8, 2015, Richmond, VA, USA), Jun. 2015, Not refereed, Not invited

Developments of Coherent X-ray Source based on Cryogenic Electron Linac
Isamu Satou; Takakazu Shintomi; Ken Hayakawa; Toshinari Tanaka; Takeshi Sakai; Keisuke Nakao; Kyoko Nogami; Manabu Inakaki; Takeshi Suwada; Masanori Satou; Shinichiro Michizono; Chigeki Fukuda; Michihiro Yoshida; Seiya Yamaguchi; Hiroshi Iwase; Masayoshi Wake; Toshikazu Takatomi; Kenji Ueno; Katsumi Endo; Jun Nakagawa; Tetsuro Mochizuki; Hisataka Takenaka; Hiroyuki Hatanaka; Toshimasa Maruyama; Akihiro Iino; Chibon Hyon; Uichiro Uetake; Kibatsu Shinohara; Atsushi Miura; Tochio Sakamoto; Nobukuni Morohashi
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited

Status of Electron Linac Operation at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Manabu Inagaki; Kento Takatsuka; Ryoko Nagashima (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida (KEK; Accelerator Laboratory); Shigeru Yamamoto (KEK; Institute of Materials Structure Science)
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited

Long-term Behavior of the Electron Gun Emission Property at LEBRA Linac
Manabu Inagaki; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Kyoko Nogami (Laboratory for Electron Beam Research and Application; Nihon University)
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited

Design of the transport at ERL coherent X-ray source
Jibong Hyun (Sokendai); Mitsuhiro Yoshida; Masanori Satoh (KEK); Takeshi Sakai; Yasushi Hayakawa; Toshinari Tanaka; Ken Hayakawa (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Katsumi Endo (TOYAMA CO.Ltd.)
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited

Characteristics of Test Cavity for Cryogenic Photocathode RF-gun
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Kento Takatuka; Kyoko Nagashima (LEBRA; Nihon University); Toshikazu Takatomi; Masafumi Fukuda (KEK); Takakazu Shintomi (ARISH; Nihon University); Junji Urakawa; Mituhiro Yoshida (KEK); Ken Hayakawa; Yasushi Hayakawa (LEBRA; Nihon University)
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited
Lead

DEVELOPMENT OF A RELIABLE C-BAND ACCELERATOR
Kenichi Kaneta; Kousuke Nakanishi; Masashi Yamamoto; Koichi Kanno; Eiji Tanabe (AET Inc.); Takeshi Sakai (LEBRA; Nihon University)
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited

Development of a C-band prebuncher
Masashi Yamamoto; Kenichi Kaneta; Kosuke Nakanishi; Koichi Kanno; Eiji Tanabe (AET Inc.); Takeshi Sakai (LEBRA; Nihon University)
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited

Measurement of Intensity Distribution of CSR at LEBRA PXR Beamline
Keisuke Nakao (LEBRA); Norihiro Sei (AIST); Takeshi Sakai; Ken Hayakawa; Toshinari Tanaka; Kyoko Nogami; Manabu Inagaki (LEBRA)
Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan, Oct. 2014, Not refereed, Not invited

RF Characteristics of 20K Cryogenic 2.6-cell Photocathode RF-gun Test Cavity
Takeshi Sakai; Manabu Inagaki; Keisuke Nakao; Kyoko Nogami; Toshinari Tanaka; Masafumi Fukuda; Toshikazu Takatomi; Junji Urakawa; Mitsuhiro Yoshida; Takakazu Shintomi
Proceedings of LINAC14 (27th Linear Accelerator Conference, 31 August - 5 September, 2014, Geneva, Switzerland), Oct. 2014, Not refereed, Not invited
Lead

Complex light source composed from subterahertz-wave coherent synchrotron radiation and an infrared free-electron laser at the Laboratory for Electron Beam Research and Application
Norihiro Sei; Hiroshi Ogawa; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Keisuke Nakao; Takeshi Sakai; Kyoko Nogami; Manabu Inagaki
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, Sep. 2014, Refereed, Not invited

Potential Photochemical Applications of the Free Electron Laser Irradiation Technique in Living Organisms
F. Shishikura; K. Hayakawa; Y. Hayakawa; M. Inagaki; K. Nakao; K. Nogami; T. Sakai; T. Tanaka
Proceedings of FEL2014, Aug. 2014, Not refereed, Not invited

Characteristics of Transported Terahertz-wave Coherent Synchrotron Radiation at LEBRA
N. Sei; H. Ogawa; K. Hayakawa; Y. Hayakawa; M. Inagaki; K. Nakao; K. Nogami; T. Sakai; T. Tanaka
Proceedings of FEL2014, Aug. 2014, Not refereed, Not invited

Basic Design of a 20K C-band 2.6-cell Photocathode RF Gun
T. Tanaka; M. Inagaki; K. Nakao; K. Nogami; T. Sakai; M. Fukuda; T. Takatomi; J. Urakawa; M. Yoshida; T. Shintomi
Proceedings of IPAC2014 (The 5th International Particle Accelerator Conference, 15-20, June 2014, Dresden, Germany), Jul. 2014, Not refereed, Not invited

Status of Electron Linac Operation and Application of Light Source at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Manabu Inagaki (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida (KEK Accelerator Laboratory); Shigeru Yamamoto (KEK Institute of Materials Structure Science)
Proceedings of the 10th Annual Meeting of Particle Accelerator Society of Japan, Jun. 2014, Not refereed, Not invited

Design optimization of 100 kV DC-gun wehnelt electrode for linac at LEBRA
Takeshi Sakai; Toshinari Tanaka; Ken Hayakawa; Yasushi Hayakawa; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki (LEBRA; Nihon University)
Proceedings of the 10th Annual Meeting of Particle Accelerator Society of Japan, Jun. 2014, Not refereed, Not invited
Lead

The operator console for accelerator control systems on a virtual machine
Keisuke Nakao; Takeshi Sakai; Ken Hayakawa (LEBRA)
Proceedings of the 10th Annual Meeting of Particle Accelerator Society of Japan, Jun. 2014, Not refereed, Not invited

Influence of X-ray topograph for image acquisition using parametric X-ray radiation
Manabu Inagaki; Kyoko Nogami; Yasushi Hayakawa; Ken Hayakawa; Toshinari Tanaka; Takeshi Sakai; Keisuke Nakao (Laboratory for Electron Beam Research and Application; Nihon University); Isamu Sato (Advanced Research Institute for the Sciences and Humanities; Nihon University)
Proceedings of the 10th Annual Meeting of Particle Accelerator Society of Japan, Jun. 2014, Not refereed, Not invited

TEST OF DIAMOND SINGLE CRYSTALS IN THE PARAMETRIC X-RAY SOURCE BASED ON A DOUBLE-CRYSTAL SYSTEM
Yasushi Hayakawa (LEBRA; Nihon University); Takashi Shizukuishi; Naoya Ishibashi (Nihon University School of Medicine); Ken Hayakawa; Manabu Inagaki; Kesuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Toshinari Tanaka (LEBRA; Nihon University)
Proceedings of the 10th Annual Meeting of Particle Accelerator Society of Japan, Jun. 2014, Not refereed, Not invited

X-ray imaging based on small-angle X-ray scattering using spatial coherence of parametric X-ray radiation
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kaneda; K. Nakao; K. Nogami; T. Sakae; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka
RREPS13 AND MEGHRI13, 2014, Refereed, Not invited

Design Optimization of 100 kV DC Gun Wehnelt Electrode for FEL Linac at LEBRA
T. Sakai; K. Hayakawa; Y. Hayakawa; M. Inagaki; K. Nakao; K. Nogami; T. Tanaka
Proceedings of FEL2013, Aug. 2013, Not refereed, Not invited

LEBRA Free Electron Laser as a Radiation Source for Photochemical Reactions in Living Organisms
F. Shishikura; K. Hayakawa; Y. Hayakawa; M. Inagaki; K. Nakao; K. Nogami; T. Sakai; T. Tanaka
Proceedings of FEL2013, Aug. 2013, Not refereed, Not invited

Development of the short focal convergence system of coherent X-rays
Isamu Sato; Takakazu Shintomi; Koichi Ishikawa; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Keishuke Nakao; Takeshi Sakai; Kyoko Nokami; Manabu Inakaki; Takao Kuwata (nihon-university); Takeshi Suwada; Masanori Satou; Shinishirou Michizono; Noriyuki Igarashi; Hiroshi Iwahe; Yumiko Takahashi (KEK); Katsumi Endou; Jun Nakagawa (toyama); Atsushi Miura (nikoha); Kenji Yajima (MMC)
Proceedings of the 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Not refereed, Not invited

Status of Electron Linac Operation and Application at Nihon University
Toshinari Tanaka; Ken Hayakawa; Yasushi Hayakawa; Takeshi Sakai; Kyoko Nogami; Keisuke Nakao; Manabu Inagaki (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Atsushi Enomoto; Shigeki Fukuda; Satoshi Ohsawa; Kazuro Furukawa; Tsuyoshi Suwada; Shinichiro Michizono; Masanori Satoh (Accelerator Laboratory; KEK)
Proceedings of the 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Not refereed, Not invited

Design of the 50MeV Linac of the Central Japan Synchrotron Radiation Facility
Masashi Yamamoto; Masako Simano; Ed Villasenor; Kosuke Nakanishi; Taku Ito; Takeshi Sakai; Tetsuichi Higuchi; Masaru Murakami; Naoki Nakamura; Jyoichi Kusano; Hiroji Mizushima; Eiji Tanabe; Takio Tomimasu (AET); Yusuke Ishikawa (YDK); Yujiro Tjima; Teruyasu Ngafuchi; Koichi Nakayama (Toshiba); Yoshifumi Takashima; masahito Hosaka; Naoto Yamamoto; Kiyoshi Tkami; Atsushi Mano; Taku Takano (Nagoya Univ.); Hiroyuki Morimoto (Aichi Science & Technology Fundation); Masahiro Katoh (UVSOR); Yoichiro Hori (KEK); Shigeki Sasaki (JASRI/SPring-8); Shigeru Koda (SAGA-LS)
Proceedings of the 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Not refereed, Not invited

Parametric X-ray generation using the burst-mode beam at LEBRA and the feasibility of the application
Yasushi Hayakawa; Ken Hayakawa; Manabu Inagaki; Keisuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Toshinari Tanaka (LEBRA; Nihon University)
Proceedings of the 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Not refereed, Not invited

Improvement in XANES Measurement Using Parametric X-ray Source
Manabu Inagaki; Kyoko Nogami; Yasushi Hayakawa; Ken Hayakawa; Toshinari Tanaka; Keisuke Nakao; Takeshi Sakai (Laboratory for Electron Beam Research and Application (LEBRA); Nihon University); Isamu Sato (Advanced Research Institute for the Sciences and Humanities (ARISH); Nihon University)
Proceedings of the 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Not refereed, Not invited

LIGHT EMISSION FROM THE NONLINEAR OPTICAL CRYSTAL BY FEL IRRADIATION
Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Kyouko Nogami; Manabu Inagaki (LEBRA)
Proceedings of the 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Not refereed, Not invited

Transport of terahertz-wave coherent synchrotron radiation with a free-electron laser beamline at lebra
N. Sei; H. Ogawa; T. Sakai; K. Hayakawa; T. Tanaka; Y. Hayakawa; K. Nakao; K. Nogami; M. Inagaki
FEL 2013: Proceedings of the 35th International Free-Electron Laser Conference, 2013

Observation of intense terahertz-wave coherent synchrotron radiation at LEBRA
Sei N; Ogawa H; Hayakawa K; Tanaka T; Hayakawa Y; Nakao K; Sakai T; Nogami K; Inagaki M
Journal of Physics D-Applied Physics, 2013, Refereed, Not invited

Computed tomography for light materials using a monochromatic X-ray beam produced by parametric X-ray radiation
Hayakawa Y; Hayakawa K; Inagaki M; Kaneda K; Nakao K; Nogami K; Sakae T; Sakai T; Sato I; Takahashi Y; Tanaka T
Nuclear Instruments and Methods in physics Research, 2013, Refereed, Not invited

Development of ionization chamber for in-line intensity monitoring of large profile parametric X-ray beam
T. Tanaka; T. Kuwada; Y. Takahashi; K. Hayakawa; Y. Hayakawa; T. Sakai; K. Nogami; K. Nakao; M. Inagaki; I. Sato
Journal of Physics: Conference Series, 2013, Refereed, Not invited

Improvement of the High Brightness X-ray Generator with the U-Shaped Rotating-Anticathode
Takeshi Sakai; Satoshi Ohsawa; Noriyoshi Sakabe; Takashi Sugimura; Mitsuo Ikeda
Proceedings of the 8th Annual Meeting of Particle Acceler ator Society of Japan, Dec. 2011, Not refereed, Not invited

Anti-rheumatic Activities of Free Electron Laser Irradiation on Arthritis in Rats
KUBOYAMA Noboru; OHTA Mitsuhiro; SAKAI Takeshi; NOGAMI Kyouko; NAKAO Keisuke; HAYAKAWA Ken; SATO Isamu; ABIKO Yoshimitsu
Nippon Laser Igakkaishi, Aug. 2011

Research and development of an electron beam focusing system for a high-brightness X-ray generator
Takeshi Sakai; Satoshi Ohsawa; Noriyoshi Sakabe; Takashi Sugimura; Mitsuo Ikeda
JOURNAL OF SYNCHROTRON RADIATION, Jan. 2011, Refereed, Not invited

IMPROVEMENT OF THE COMBINED FUNCTION MAGNET FOR A HIGHLY BRIGHT X-RAY GENERATOR
Takeshi Sakai; Satoshi Ohsawa; Noriyoshi Sakabe; Takashi Sugimura; Mitsuo Ikeda
Proceedings of the 7th Annual Meeting of Particle Acceler ator Society of Japan, Aug. 2010, Not refereed, Not invited

Geometrical effect of target crystal on PXR generation as a coherent X-ray source
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kuwada; K. Nakao; K. Nogami; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka
International Journal of Modern Physics A, Jun. 2010, Refereed, Not invited

Phase-contrast imaging with a novel X-ray source
Yumiko Takahashi; Yasushi Hayakawa; Takao Kuwada; Takeshi Sakai; Keisuke Nakao; Kyoko Nogami; Manabu Imagaki; Toshinari Tanaka; Isamu Sato
AIP Conference Proceedings, Apr. 2010, Refereed, Not invited

Performance and Application of FEL and PXR Sources at Nihon University
T. Tanaka; K. Hayakawa; Y. Hayakawa; T. Kuwada; T. Sakai; K. Nakao; Y. Takahashi; K. Nogami; M. Inagaki; I. Sato
SRI 2009: THE 10TH INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION, 2010, Refereed, Not invited

GEOMETRICAL EFFECT OF TARGET CRYSTAL ON PXR GENERATION AS A COHERENT X-RAY SOURCE
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kuwada; K. Nakao; K. Nogami; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka
CHARGED AND NEUTRAL PARTICLES CHANNELING PHENOMENA, CHANNELING 2008, 2010, Refereed, Not invited

GENERATION OF HIGH ENERGY PARAMETRIC X-RAYS USING Si(220) CRYSTAL AS A TARGET
Yasushi Hayakawa; Ken Hayakawa; Manabu Inagaki; Takao Kuwada; Keisuke Nakao; Kyoko Nogami; Toshiro Sakae; Takeshi Sakai; Isamu Sato; Yumiko Takahashi; Toshinari Tanaka
Proceedings of the 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Not refereed, Not invited

ANALYSIS OF INFLUENCE OF TEMPERATURE OF COOLING WATER ON ELECTRON BEAM AT LEBRA 125MeV LINAC
Keisuke Nakao; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Isamu Sato; Takeshi Sakai; Kyoko Nogami; Manabu Inagaki
Proceedings of the 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Not refereed, Not invited

OPTIMIZATION OF THE BENDING MAGNET FOR A HIGHLY BRIGHT X-RAY GENERATOR
Takeshi Sakai; Satoshi Ohsawa; Takashi Sugimura; Mitsuo Ikeda; Noriyoshi sakabe
Proceedings of the 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Not refereed, Not invited
Lead

STATUS OF ELECTRON LINAC AND LIGHT SOURCES AT LEBRA IN NIHON UNIVERSITY
Toshinari Tanaka; Ken Hayakawa; Yasushi Hayakwa; Yumiko Takahashi; Takao Kuwada; Takeshi Sakai; Kyoko Nogami; Keisuke Nakao; Manabu Inagaki; Isamu Sato; Atsushi. Enomoto; Shigeki Fukuda; Satoshi Ohsawa; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Soichi Wakatsuki; Shigeru Yamamoto
Proceedings of the 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Not refereed, Not invited

ANALYSIS ON VARIATION FACTORS OF OPTICAL POWER AT THE LEBRA FEL
K. Nakao; K. Hayakawa; T. Tanaka; Y. Hayakawa; T. Sakai; I. Sato; K. Nogami; M. Inagaki
Proceedings of FEL2009 (The 31st International Free Electron Laser Conference) (Aug. 23-28, 2009, Liverpool, United Kingdom), Aug. 2009, Refereed, Not invited

VISIBLE FEL IRRADIATION EXPERIMENTS ON CARBONMONOXY HEMOGLOBIN
F. Shishikura; K. Ishikawa; K. Hayakawa; Y. Hayakawa; T. Kuwada; K. Nakao; K. Nogami; T.Tanaka; M. Inagaki; T. Sakai; I. Sato
Proceedings of FEL2009 (The 31st International Free Electron Laser Conference) (Aug. 23-28, 2009, Liverpool, United Kingdom), Aug. 2009, Refereed, Not invited

Application of parametric x-rays to phase-contrast imaging
高橋由美子; 早川恭史; 桑田隆生; 境武志; 中尾圭佐; 野上杏子; 田中俊成; 早川建; 佐藤勇
Adv. X-ray Chem. Anal. Japan, Feb. 2009, Refereed, Not invited

Precise control of cooling water system for stabilization of 125 mev linac at LEBRA
T. Sakai; T. Kuwada; M. Inagaki; I. Sato; T. Tanaka; K. Hayakawa; Y. Hayakawa; Y. Takahashi; K. Nakao; K. Nogami
Proceedings of the 24th Linear Accelerator Conference, LINAC 2008, 2009

Development of a new initial-beam-loading compensation system and its application to a free-electron-laser linac
M. Satoh; T. Koseki; T. Shidara; S. Fukuda; H. Kobayashi; Y. Kamiya; N. Nakamura; T. Sakai; Y. Hayakawa; T. Tanaka; K. Hayakawa; I. Sato; S. Miura
Physical Review Special Topics-Accelerators and Beams, 2009, Refereed, Not invited

Wavelength Dispersive X-ray Absorption Fine Structure Imaging by Parametric X-ray Radiation
Manabu Inagaki; Yasushi Hayakawa; Kyoko Nogami; Toshinari Tanaka; Ken Hayakawa; Takeshi Sakai; Keisuke Nakao; Isamu Sato
JAPANESE JOURNAL OF APPLIED PHYSICS, Oct. 2008, Refereed, Not invited

Dependence of PXR beam performance on the operation of the pulsed electron linac
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kuwada; K. Nakao; K. Nogami; T. Sakae; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Sep. 2008, Refereed, Not invited

EXPERIMENT WITH ASYMMETRIC TARGET CRYSTALS IN LEBRA-PXR
Yasushi Hayakawa; Ken Hayakawa; Manabu Inagaki; Takao Kuwada; Keisuke Nakao; Kyoko Nogami; Takeshi Sakai; Isamu Sato; Yumiko Takahashi; Toshinari Tanaka
Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan, Aug. 2008, Not refereed, Not invited

Harmonic generation of the FEL using NLO II
Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Keisuke Nakao; Kyouko Nogami; Takesh Sakai; Isamu Sato
Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan, Aug. 2008, Not refereed, Not invited

STUDY FOR THE PERFORMANCE OF CANCER MEDICAL TREATMENT USING OF A COHERENT MONOCHROMTIC X-RAY
Isamu Sato; Kazutaka Shintomi; Itaru Moro; Takao Kuwada; Takeshi Sakai; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Keisa Nakao; Yumiko Takahashi; Kyoko Nogami; Koichi Ishikawa; Genichiro Takahashi; Katsumi Abe; Tsutomu Saito; Hiroki Nagase; Fumio Shishikura; Tetsuo Yoshikawa; Koji Kurihara; Reiko Mori; Hiroshi Yamamoto; Kaoru Suzuki; Tetsuya Nakanishi; Toshiro Sagae; Atsushi Mori; Shigaki Fukuda; Satoshi Ohsawa; Kazuo Furokawa; Shinichiro Michizono; Takeshi Suwada; Takuya Kamitani; Kazue Yokoyama; Shuichi Noguchi; Nakaharu Kako; Soichi Wakatsuki; Shigeru Yamamoto; Kimichika Tsuchiya; Hisataka Takenaka; Kastuhiko Asano; Kiyokazu Sato; Koiichi Nakayama; Masaru Kuribayashi; Kazuaki Miyazaki; Kazuhiko Sakurai; Naoki Yamamoto; Akio Noda; Ario Koizumi
Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan, Aug. 2008, Not refereed, Not invited

STATUS OF LINAC AND LIGHT SOURCES OF LEBRA AT NIHON UNIVERSITY
Toshinari Tanaka; Isamu Sato; Ken Hayakawa; Yasushi Hayakawa; Takao Kuwada; Takeshi Sakai; Keisuke Nakao; Yumiko Takahashi; Kyoko Nogami; Manabu Inagaki; Naoki Sato; Hiroshi Okabe; Masato Ishii; Atsushi Enomoto; Shigeki Fukuda; Satoshi Ohsawa; Kazuro Furukawa; Shinichiro Michizono
Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan, Aug. 2008, Not refereed, Not invited

Development of Grid Pulse Voltage Remote Controller for the LEBRA Linac
Keisuke Nakao; Ken Hayakawa; Toshinari Tanaka; Isamu Sato; Takeshi Sakai; Yasushi Hayakawa; Kyoko Nogomi; Manabu Inagaki
Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan, Aug. 2008, Not refereed, Not invited

PRECISE CONTROL OF COOLING WATER SYSTEM FOR STABILIZATION OF LINAC AT LEBRA IN NIHON UNIVERSITY
Takeshi Sakai; Toshinari Tanaka; Ken Hayakawa; Yasushi Hayakawa; Takao Kuwada; Yumiko Takahashi; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Isamu Sato
Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japan and the 33rd Linear Accelerator Meeting in Japan, Aug. 2008, Not refereed, Not invited
Lead

Control and support system for lebra FEL operation
K. Nakao; K. Hayakawa; Y. Hayakawa; K. Nogami; T. Tanaka; M. Inagaki; T. Sakai; I. Sato
30th International Free Electron Laser Conference, FEL 2008, 2008

Operation of Near-infrared FEL at Nihon University
K.Hayakawa; Y.Hayakawa; K.Nakao; K.Nogami; T.Tanaka; A.Enomoto; S.Fukuda; K.Furukawa; S.Michizono; S.Ohsawa; M.Inagaki; T.Kuwada; T.Sakai; I.Sato
Proceedings of the 29th International Free Electron Laser Conference, Aug. 2007, Refereed, Not invited

STATUS OF LABORATORY FOR ELECTRON BEAM RESEARCH AND APPLICATION AT NIHON UNIVERSITY
Toshinari Tanaka; Ken Hayakawa; Yasushi Hayakawa; Yumiko Takahashi; Kyoko Nogami; Keisuke Nakao; Isamu Sato; Takao Kuwada; Takeshi Sakai; Manabu Inagaki; Atsushi Enomoto; Shigeki Fukuda; Satoshi Ohsawa; Kazuro Furukawa; Shinichiro Michizono
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

SPACE COHERENT X-RAY GENERATOR USING ELECTRON LINAC
I.Sato; T.Kuwada; T.Sakai; M.Inagaki; K.Hayakawa; T.Tanaka; Y.Hayakawa; K.Nakao; K.Nogami; Y.Takahashi; H.Okabe; N.Sato; T.Sakae; A.Mori; S.Fukuda; A.Enomoto; S.Ohsawa; K.Furukawa; S.Michizono; S.Wakatsuki; S.Yamamoto; K.Tsuchiya
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

STATUS OF THE PXR INSTRUMENTATION AT LEBRA, NIHON UNIVERSITY
Y.Hayakawa; K.Hayakawa; M.Inagaki; T.Kuwada; K.Nakao; K.Nogami; T.Sakai; I.Sato; Y.Takahashi; T.Tanaka
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

Harmonic generation of the FEL using NLO
K.Hayakawa; T.Tanaka; Y.HayakawaA); K.Nakao; K.Nogami; T.Sakai; I.Sato; A.Mori
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

CORRELATION BETWEEN THE ELECTRON BEAM CONDITION AND THE ENERGY RESOLUTION OF PXR DISPERSION
M.Inagaki; Y.Hayakawa; K.Hayakawa; K.Nakao; K.Nogami; T.Tanaka; T.Sakai; I.Sato
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

PULSE STRUCTURE OF THE PXR INTENSITY AT LEBRA, NIHON UNIVERSITY
K.Nogami; M.Inagaki; Y.Hayakawa; K.Hayakawa; T.Tanaka; T.Sakai; K.Nakao; T.Takikawa; I.Sato
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

OBSERVATION OF BACKBOMBARDMENT ON DC ELECTRON GUN
T.Tanaka; K.Hayakawa; Y.Hayakawa; K.Nogami; K.Nakao; I.Sato; T.Sakai; M.Inagaki
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

DEVELOPMENT OF THE ELECTRON GUN EMISSION CURRENT FEEDBACK SYSTEM AT LEBRA
K.Nakao; K.Hayakawa; T.Tanaka; Y.Hayakawa; I.Sato; T.Sakai; K.Nogami
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited

PRECISE CONTROL OF COOLING WATER TEMPERATURE FOR LEBRA-LINAC
T.Sakai; T.Tanaka; K.Hayakawa; Y.Hayakawa; T.Kuwada; Y.Takahashi; K.Nakao; K.Nogami; M.Inagaki; I.Sato
Proceedings of the4th Annual Meeting of Particle Accelerator Society of Japan and the 32nd Linear Accelerator Meeting in Japan, Aug. 2007, Not refereed, Not invited
Lead

Phase contrast imaging of biological materials using LEBRA-PXR
T. Kuwada; Y. Hayakawa; K. Nogami; T. Sakai; T. Tanaka; K. Hayakawa; I. Sato
SYNCHROTRON RADIATION INSTRUMENTATION, PTS 1 AND 2, 2007, Refereed, Not invited

Tunable monochromatic X-ray source based on parametric X-ray radiation at LEBRA, Nihon University
Y. Hayakawa; I. Sato; K. Hayakawa; T. Tanaka; T. Kuwada; T. Sakai; K. Nogami; K. Nakao; M. Inagaki; A. Mori
SYNCHROTRON RADIATION INSTRUMENTATION, PTS 1 AND 2, 2007, Refereed, Not invited

Advanced applications of PXR at LEBRA, nihon university
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kuwada; A. Mori; K. Nakao; K. Nogami; T. Sakae; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka
INTERNATIONAL CONFERENCE ON CHARGED AND NEUTRAL PARTICLES CHANNELING PHENOMENA II - CHANNELING 2006, 2007, Refereed, Not invited

Status of the parametric X-ray generator at LEBRA, Nihon University
Y. Hayakawa; I. Sato; K. Hayakawa; T. Tanaka; A. Mori; T. Kuwada; T. Sakai; K. Nogami; K. Nakao; T. Sakae
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Nov. 2006, Refereed, Not invited

Development of Automatic Beam Alignment System for the LEBRA Linac
K.Nakao; K.Hayakawa; T.Tanaka; Y.Hayakawa; I.Sato; T.Sakai; K.Nogami; M.Inagaki
Proceedings of the 3rd Annual Meeting of Particle Accelerator Society of Japan and the 31st Linear Accelerator Meeting in Japan (Aug 2-4, 2006, Sendai, Japan), Aug. 2006, Not refereed, Not invited

日大リニアックと光源の利用状況
T.Tanaka; K.Hayakawa; Y.Hayakawa; K.Nogami; K.Nakao; I.Sato; T.Kuwada; T.Sakai; M.Inagaki; A.Enomoto; S.Fukuda; S.Ohsawa; K.Furukawa; S.Michizono
第3回日本加速器学会・第31回リニアック技術研究会, Aug. 2006, Not refereed, Not invited

コヒーレントX線発生用コンパクト電子リニアックの基本設計
I.Sato; K.Kuwada; T.Sakai; K.Inagaki; K.Hayakawa; T.Tanaka; Y.Hayakawa; K.Nogami; K.Nakao
第3回日本加速器学会・第31回リニアック技術研究会, Aug. 2006, Not refereed, Not invited

パラメトリックX線放射を用いたエネルギー分散型XAFS測定の性能評価
M.Inagaki; Y.Hayakawa; I.Sato; K.Hayakawa; T.anaka; T.Kuwada; T.Sakai; K.Nagami; K.Nakao; A.Mori
第3回日本加速器学会・第31回リニアック技術研究会, Aug. 2006, Not refereed, Not invited

LEBRA Linac の運転制御におけるBPMの活用
K.Hayakawa; K.Ishiwata; T.Tanaka; Y.Hayakawa; T.Sakai; K.Nogami; K.Nakao; M.Inagaki; I.Sato
第3回日本加速器学会・第31回リニアック技術研究会, Aug. 2006, Not refereed, Not invited

日本大学LEBRA LINACにおける冷却水系の温度安定化
T.Sakai; T.Tanaka; K.Hayakawa; Y.Hayakawa; K.Nogami; K.Nakao; M.Inagaki; I.Sato
第3回日本加速器学会・第31回リニアック技術研究会, Aug. 2006, Not refereed, Not invited

Application of LEBRA-PXR to the diffraction analysis of minerals
T. Sakae; Y. Hayakawa; A. Mori; T. Kuwada; T. Sakai; K. Nogami; T. Tanaka; K. Hayakawa; I. Sato
Journal of Mineralogical and Petrological Sciences, Mar. 2006, Refereed, Not invited

Phase-contrast Imaging Using the LEBRA-PXR System at Nihon University
Y.Hayakawa; K.Hayakawa; M.Inagaki; T.Kuwada; A.Mori; K.Nogami; K.Nakao; T.Sakae; T.Sakai; I.Sato; Y.Takahashi; T.Tanaka
Proceedings of the 3rd Annual Meeting of Particle Accelerator Society of Japan and the 31st Linear Accelerator Meeting in Japan (Aug 2-4, 2006, Sendai, Japan), 2006, Not refereed, Not invited

日大LEBRA FELの特性
K.Hayakawa; I.Sato; T.Tanaka; Y.Hayakawa; K.Nogami; K.Nakao; T.Sakai; M.Inagaki
Proceedings of the 2ndt Annual Meeting of Particle Accelerator Society of Japan and the 30th Linear Accelerator Meeting in Japan (July 20-22, 2005, Tosu, Japan), Jul. 2005, Not refereed, Not invited

日大リニアック冷却水の放射化測定
M.Inagaki; I.Sato; T.Sakai; K.Hayakawa; T.Tanaka; Y.Hayakawa; K.Nogami; K.Ishiwata; K.Nakao
Proceedings of the 2ndt Annual Meeting of Particle Accelerator Society of Japan and the 30th Linear Accelerator Meeting in Japan (July 20-22, 2005, Tosu, Japan), Jul. 2005, Not refereed, Not invited

ビーム位置計測システムの開発Ⅱ
K.Ishiwata; I.Sato; K.Hayakawa; T.Tanaka; Y.Hayakawa; T.Sakai; K.Nogami; K.Nakao; T.Suwada
Proceedings of the 2ndt Annual Meeting of Particle Accelerator Society of Japan and the 30th Linear Accelerator Meeting in Japan (July 20-22, 2005, Tosu, Japan), Jul. 2005, Not refereed, Not invited

日本大学電子線利用研究施設におけるFEL共振器ミラーオートアライメントシステムの開発
K.Nakao; I.Sato; K.Hayakawa; T.Tanaka; Y.Hayakawa; T.Sakai
Proceedings of the 2nd Annual Meeting of Particle Accelerator Society of Japan and the 30th Linear Accelerator Meeting in Japan (July 20-22, 2005, Tosu, Japan), Jul. 2005, Not refereed, Not invited

Sバンド用進行波型高周波窓の開発(2)
T.Sakai; I.Sato; K.Hayakawa; T.Tanaka; Y.Hayakawa; S.Fukuda; S.Michizono
Proceedings of the 2nd Annual Meeting of Particle Accelerator Society of Japan and the 30th Linear Accelerator Meeting in Japan (July 20-22, 2005, Tosu, Japan), Jul. 2005, Not refereed, Not invited

パラメトリックＸ線の今後の展望
I.Sato; K.Hayakawa; T.Tanaka; Y.Hayakawa; T.Kuwada; T.Sakai; K.Nogami; Y.Takahashi; K.Suzuki; Y.Tanaka; T.Sakae; A.Mori; K.Nakao; Y.Oku; M.Inagaki
Proceedings of the 2nd Annual Meeting of Particle Accelerator Society of Japan and the 30th Linear Accelerator Meeting in Japan (July 20-22, 2005, Tosu, Japan), Jul. 2005, Not refereed, Not invited

日大電子線利用研究施設125MeVリニアックおよび光源の現状
T.Tanaka; I.Sato; K.Hayakawa; Y.Hayakawa; A.Mori; K.Nogami; T.Sakai; K.Ishiwata; K.Nakao; M.Inagaki; A.Kidokoro; H.Takasaki; S.Fukuda; A.Enomoto; S.Ohsawa; T.Shidara; T.Suwada; K.Furukawa; S.Michizono
Proceedings of the 2nd Annual Meeting of Particle Accelerator Society of Japan and the 30th Linear Accelerator Meeting in Japan (July 20-22, 2005, Tosu, Japan), Jul. 2005, Not refereed, Not invited

Pit formation in human enamel and dentin irradiated using the 2.94 μm LEBRA-free electron laser
Toshiro Sakae; Yukie Sato; Yasuhiro Tanimoto; Masanori Higa; Hirokazu Oinuma; Yukishige Kozawa; Hiroyuki Okada; Hirotsugu Yamamoto; Toru Hayakawa; Kimiya Nemoto; Takeshi Sakai; Kyoko Nogami; Akira Mori; Takao Kuwada; Yasushi Hayakawa; Toshinari Tanaka; Ken Hayakawa; Isamu Sato
International Journal of Oral-Medical Sciences, May 2005, Refereed, Not invited

Power Intensification of LEBRA FEL by RF Phase Modulation
K.Hayakawa; Y.Hayakawa; K.Nakao; K.Nogami; T.Sakai; I.Sato; T.Tanaka
Proceedings of the 27th International Free Electron Laser Conference, (Aug. 21-26, 2005 Stanford, CA USA), 2005, Refereed, Not invited

Improvement of the PFN control system for the klystron pulse modulator at LEBRA
K Yokoyama; Sato, I; K Hayakawa; T Tanaka; Y Hayakawa; K Kanno; T Sakai; K Ishiwata; K Nakao
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Aug. 2004, Refereed, Not invited

Tunability and Power Characteristics of the LEBRA Infrared FEL
T.Tanaka; K.Hayakawa; Y.Hayakawa; A.Mori; K.Nogami; I.Sato; K.Yokoyama; K.Ishiwata; K.Kanno; K.Nakao; T.Sakai
Proceedings of the 26th International Free Electron Laser Conference and 11th FEL Users Workshop (August 29 - September 3, Trieste Italy), Aug. 2004, Not refereed, Not invited

The LEBRA 125MeV Electron Linac for FEL And PXR Generation
K.Hayakawa; Y.Hayakawa; K.Ishiwata; K.Kanno; K.Nakao; T.Sakai; I.Sato; T.Tanaka; K.Yokoyama
Proceedings of LINAC 2004 (August 16-20, 2004, Lubeck Germany), Aug. 2004, Not refereed, Not invited

ANALYSIS OF THE GAIN SATURATION IN LEBRA FEL USING GENESIS
Y. Hayakawa; I. Sato; K. Hayakawa; T. Tanaka; K. Yokoyama; T. Kuwada; A. Mori; K. Nogami; T. Sakai; K. Kanno; K. Ishiwata; K. Nakao
Proc. of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan (August 4 -6, 2004, Funabashi Japan), Aug. 2004, Not refereed, Not invited

PRESENT STATUS OF THE PARAMETRIC X-RAY GENERATOR AT LEBRA
Y. Hayakawa; I. Sato; K. Hayakawa; T. Tanaka; K. Yokoyama; T. Kuwada; A. Mori; K. Nogami; T. Sakai; K. Kanno; K. Ishiwata; K. Nakao
Proc. of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan (August 4 -6, 2004, Funabashi Japan), Aug. 2004, Not refereed, Not invited

電子線利用施設におけるFEL出力変動の測定
A. Mori; K. Hayakawa; I. Sato; T. Tanaka; Y. Hayakawa; K. Yokoyama; K. Nogami; T. Sakai; K. Kanno; K. Ishiwata; K. Nakao; A. Kidokoro; M. Inagaki; H. Takasaki
Proc. of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan, 2004, Not refereed, Not invited

日大125MeVリニアックの稼働状況
T. Tanaka; I. Sato; K. Hayakawa; Y. Hayakawa; K. Yokoyama; K. Nogami; A. Mori; K. Kanno; T. Sakai; K. Ishiwata; K. Nakao; S. Fukuda; A. Enomoto; S. Ohsawa; T. Suwada; K. Furukawa; S. Michizono
Proc. of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan, 2004, Not refereed, Not invited

LaB6によるマルチバンチ光電子発生試験
K. Kanno; I. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; A. Mori; K. Nogami; T. Sakai; K. Ishiwata; K. Nakao
Proc. of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan, 2004, Not refereed, Not invited

ビーム位置モニターの出力信号への高調波の影響
K. Ishiwata; I. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; K. Yokoyama; A. Mori; K. Nogami; K. Kanno; T. Sakai; K. Nakao; T. Suwada
Proc. of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan, 2004, Not refereed, Not invited

LEBRAにおけるビーム位置計測システムの開発
K. Ishiwata; I. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; K. Yokoyama; A. Mori; K. Nogami; K. Kanno; T. Sakai; K. Nakao; T. Suwada
Proc. of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan, 2004, Not refereed, Not invited

Stability of the LEBRA infrared FEL
K Yokoyama; Sato, I; K Hayakawa; T Tanaka; Y Hayakawa; K Kanno; T Sakai; K Ishiwata; E Hashimoto
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jul. 2003, Refereed, Not invited

Characteristics of the fundamental FEL and the higher harmonic generation at LEBRA
Y Hayakawa; Sato, I; K Hayakawa; T Tanaka; K Yokoyama; K Kanno; T Sakai; K Ishiwata; K Nakao; E Hashimoto
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Jul. 2003, Refereed, Not invited

Characteristics of the Fundamental and 3rd Harmonic FEL at LEBRA
Y.Hayakawa; ISato; K.Hayakawa; T.Tanaka; K.Yokoyama; K.Kanno; T.Sakai; K.Ishiwata; K.Nakao; E.Hashimoto
Nuclear Instruments and Methods in Physics Research, 2003, Refereed, Not invited

日本大学電子線利用研究施設の現状
佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 菅野 浩一; 境 武志; 石渡 謙一郎; 中尾 圭佐; 長谷川 崇; 宮崎 慎也; 福田 茂樹; 榎本 收志; 大沢 哲; 設楽 哲夫; 諏訪田 剛; 古川 和朗; 道園 真一郎
Proc. of 28th Linear Accelerator Meeting in Japan, 2003, Not refereed, Not invited

商用電源変動とビーム不安定性Ⅱ
早川 建; 田中 俊成; 早川 恭史; 佐藤 勇; 横山 和枝; 中尾 圭佐; 境 武志; 金井 泉; 本郷 礼二
Proc. of 28th Linear Accelerator Meeting in Japan, 2003, Not refereed, Not invited

LEBRA-FEL用光陰極RF電子銃の設計検討
菅野 浩一; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 境 武志; 石渡 謙一郎; 中尾 圭佐; 奥 洋平; 長谷川 崇; 宮崎 慎也; 稲垣 学; 城所 明生; 高崎 寛
Proc. of 28th Linear Accelerator Meeting in Japan, 2003, Not refereed, Not invited

FEL用Sバンド大電力クライストロンの長パルス運転
境 武志; 佐藤 勇; 樋野 雅司; 吉田 清彦; 福田 茂樹; 田中 俊成; 早川 建; 早川 恭史; 横山 和枝; 菅野 浩一; 石渡 謙一郎; 中尾 圭佐; 長谷川 崇; 宮崎 慎也
Proc. of 28th Linear Accelerator Meeting in Japan, 2003, Not refereed, Not invited

日本大学電子線利用研究施設におけるFEL共振器長の微少変化の測定
中尾 圭佐; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 境 武志; 菅野 浩一; 石渡 謙一郎; 長谷川 崇; 宮崎 慎也
Proc. of 28th Linear Accelerator Meeting in Japan, 2003, Not refereed, Not invited

PFNインダクタンスの自動調整システム
横山 和枝; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 境 武志; 菅野 浩一; 石渡 謙一郎; 中尾 圭佐; 長谷川 崇
Proc. of 28th Linear Accelerator Meeting in Japan, 2003, Not refereed, Not invited

LEBRAにおけるBPMによるビーム位置測定
石渡 謙一郎; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 諏訪田 剛; 境 武志; 菅野 浩一; 中尾 圭佐; 長谷川 崇
Proc. of 28th Linear Accelerator Meeting in Japan, 2003, Not refereed, Not invited

S-Band Klystron for Long Pulse Operation
T. Sakai; I. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; K. Yokoyama; K. Kanno; K. Ishiwata
Proc. of the 21st International Linear Accelerator Conference, 2003, Not refereed, Not invited

Development of Strip-Line Type Beam Position Monitor
K. Ishiwata; I. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; K. Yokoyama; T. Sakai; K. Kanno; K. Nakao; E. Hashimoto; T. Murakami; K. Fujioka
Proc. of the 21st International Linear Accelerator Conference, 2003, Not refereed, Not invited

Simultaneous measurement of the fundamental and third harmonic FEL at LEBRA
Yasushi Hayakawa; Isamu Sato; Ken Hayakawa; Toshinari Tanaka; Kazue Yokoyama; Takeshi Sakai; Kouichi Kanno; Ken-ichiro Ishiwata and Eiko Hashimoto
Japanese Journal of Applied Physics (Jpn. J. Appl. Phys. Suppl.), Oct. 2002, Refereed, Not invited

日大FELの現状と光源実用化に向けた改良
早川 恭史; 佐藤 勇; 早川 建; 田中 俊成; 横山 和枝; 境 武志; 菅野 浩一; 石渡 謙一郎; 橋本 英子; 中尾 圭佐; 藤岡 一雅; 村上 琢哉; 長谷川 崇; 宮崎 慎也
第2７回リニアック技術研究会プロシーディングス, Aug. 2002, Not refereed, Not invited

Suppression of energy fluctuation for the free electron laser at LEBRA
K Yokoyama; Sato, I; K Hayakawa; T Tanaka; K Sato; Y Hayakawa; H Nakazawa; K Kanno; T Sakai; K Ishiwata
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Jul. 2002, Refereed, Not invited

First lasing of LEBRA FEL at Nihon University at a wavelength of 1.5 μm
Y. Hayakawa; I. Sato; K. Hayakawa; T. Tanaka; H. Nakazawa; K. Yokoyama; K. Kanno; T. Sakai; K. Ishiwata; A. Enomoto; S. Fukuda; S. Ohsawa; K. Tsuchiya; M. Kato
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, May 2002, Refereed, Not invited

Tunable Monochromatic X-ray Source Based on Parametric X-ray Radiation at LEBRA, Nihon University
Y.Hayakawa; I.Sato; K.Hayakawa; T.Tanaka; K.Kuwada; T.Sakai; K.Nogami; K.Nakao; M.Inagaki; A.Mori
AIP Conference Proceedings 879, SYNCHROTRON RADIATION INSTRUMENTATION: Ninth International Conference on Synchrotron Radiation Instrumentation (SR2006, 28 May - 03 Jun, 2006, Daegu, Korea), 2002, Refereed, Not invited

日本大学電子線利用研究施設における加速器モニタの開発
中尾 圭佐; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 境 武志; 菅野 浩一; 石渡 謙一郎; 橋本 英子; 藤岡 一雅; 村上 琢哉; 長谷川 崇; 宮崎 慎也
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

加速器調整履歴の蓄積
早川 建; 横山 和枝; 田中 俊成; 早川 恭史; 佐藤 勇; 境 武志; 菅野 浩一; 石渡 謙一郎
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

日本大学電子線形加速器の現状と研究計画
佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 境 武志; 菅野 浩一; 石渡 謙一郎; 橋本 英子; 藤岡 一雅; 中尾 圭佐; 村上 琢哉; 長谷川 崇; 宮崎 慎也; 福田 茂樹; 榎本 收志; 大沢 哲; 設楽 哲夫; 諏訪田 剛; 山口 誠哉; 紙谷 琢哉; 道園 真一郎; 土屋公央
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

日大FEL用光陰極RF電子銃に関するシミュレーション
菅野 浩一; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 境 武志; 石渡 謙一郎; 中尾 圭佐; 橋本 英子; 藤岡 一雅; 村上 琢哉; 長谷川 崇; 宮崎 慎也
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

FEL発振によって強調された3次高調波の測定
橋本 英子; 早川 恭史; 佐藤 勇; 早川 建; 田中 俊成; 横山 和枝; 菅野 浩一; 境 武志; 石渡 謙一郎; 中尾 圭佐; 藤岡 一雅; 村上 琢哉; 長谷川 崇; 宮崎 慎也
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

FEL共振器ミラーの反射率の測定
長谷川 崇; 宮崎 慎也; 境 武志; 中尾 圭佐; 菅野 浩一; 石渡 謙一郎; 村上 琢哉; 橋本 英子; 藤岡 一雅; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

LEBRAクライストロンの位相変動
横山 和枝; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 境 武志; 菅野 浩一; 石渡 謙一郎; 中尾 圭佐
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

FEL用Sバンドロングパルスクライストロンの動作安定化テスト
境 武志; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 菅野 浩一; 石渡 謙一郎; 中尾 圭佐; 橋本 英子; 藤岡 一雅; 村上 琢哉; 長谷川 崇; 宮崎 慎也
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

ストリップライン型ビームポジションモニターの研究
石渡 謙一郎; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 諏訪田 剛; 境 武志; 菅野 浩一; 中尾 圭佐; 橋本 英子
Proc. of 27th Linear Accelerator Meeting in Japan, 2002, Not refereed, Not invited

Present status of the Near-IR FEL at LEBRA at Nihon University.
K. Kanno; I. Sato; K. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; H. Nakazawa; K. Yokoyama; T. Sakai; K. Ishiwata; H. Inokawa; H. Nakamura; S. Ohsawa; S. Fukuda; S. Anami
Proc. of the 23rd Int. FEL Conf., and the 8th FEL User Workshop, 2002, Not refereed, Not invited

Beam Test of Initial Beam Loading Compensation for Electron Linacs
M. Satoh; T. Matsumoto; T. Shidara; S. Fukuda; H. Kobayashi; Y Kamiya; N. Nakamura; T. Koseki; T. Sakai; K. Yokoyama; Y. Hayakawa; K. Hayakawa; T. Tanaka; I. Sato; S. Miura
Proc. of the 8th European Particle Accelerator Conference, 2002, Not refereed, Not invited

日本大学電子線形加速器の高度化と自由電子レーザーについて
佐藤 勇; 川上 一朗; 佐藤 和男; 松原 洋一; 早川 建; 田中 俊成; 早川 恭史; 中澤 裕之; 横山 和枝; 菅野 浩一; 境 武志; 石渡 謙一郎; 猪川 弘康; 中村 吉宏; 橋本 英子; 藤岡 一雅; 中尾 圭佐; 村上 琢哉; 穴見 昌三; 福田 茂樹; 小林 仁; 榎本 收志; 大沢 哲; 設楽 哲夫; 山口 誠哉; 紙谷 琢哉; 道園 真一郎; 土屋 公央
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

電子銃の低エミッタンス化による入射部の高度化
菅野 浩一; 佐藤 勇; 佐藤 和男; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 境 武志; 石渡 謙一郎; 猪川 弘康; 中村 吉宏; 中尾 圭佐; 橋本 英子; 藤岡 一雅; 村上 琢哉; 道園 真一郎; 大沢 哲; 福田 茂樹; 諏訪田 剛
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

FEL用クライストロンのグレードアップ
境 武志; 佐藤 勇; 逸見 和久; 早川 建; 田中 俊成; 早川 恭史; 佐藤 和男; 横山 和枝; 菅野 浩一; 石渡 謙一郎; 猪川 弘康; 中村 吉宏; 中尾 圭佐; 橋本 英子; 藤岡 一雅; 村上 琢哉
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

クライストロンドライブ系の位相安定化
横山 和枝; 佐藤 勇; 早川 建; 田中 俊成; 佐藤 和男; 早川 恭史; 松原 洋一; 中澤 裕之; 境 武志; 菅野 浩一; 石渡 謙一郎; 猪川 弘康; 中村 吉宏; 橋本 英子; 中尾 圭佐; 藤岡 一雅; 村上 琢哉
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

FELビームのための補償光学システム
橋本 英子; 藤岡 一雅; 村上 琢哉; 中尾 圭佐; 佐藤 勇; 早川 建; 田中 俊成; 早川 恭史; 佐藤 和男; 中澤 裕之; 横山 和枝; 菅野 浩一; 境 武志; 石渡 謙一郎; 猪川 弘康; 中村 吉宏
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

アンジュレーター光によるFELビームラインのビーム診断
田中 俊成; 早川 建; 早川 恭史; 佐藤 勇; 横山 和枝; 菅野 浩一; 境 武志; 石渡 謙一郎; 猪川 弘康; 中村 吉宏
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

非破壊型ビームポジションモニターの開発研究
石渡 謙一郎; 田中 俊成; 佐藤 勇; 早川 建; 早川 恭史; 佐藤 和男; 猪川 弘康; 中村 吉宏; 菅野 浩一; 境 武志; 横山 和枝; 中澤 裕之; 藤岡 一雅; 橋本 英子; 中尾 圭佐; 村上 琢哉
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

商用電源変動とビーム不安定性
早川 建; 田中 俊成; 早川 恭史; 佐藤 和男; 佐藤 勇; 横山 和枝; 境 武志; 菅野 浩一
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

LEBRAにおけるビームダンプの放射線遮蔽効果の評価
猪川 弘康; 佐藤 勇; 佐藤 和男; 早川 建; 田中 俊成; 早川 恭史; 石渡 謙一郎; 中村 吉宏; 中澤 裕之; 横山 和枝; 菅野 浩一; 境 武志; 中尾 圭佐; 橋本 英子; 藤岡 一雅; 村上 琢哉
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

電子線利用研究施設における放射線監視システムの概要
中尾 圭佐; 佐藤 勇; 佐藤 和男; 早川 建; 田中 俊成; 早川 恭史; 横山 和枝; 菅野 浩一; 境 武志; 石渡 謙一郎; 猪川 弘康; 中村 吉宏; 橋本 英子; 藤岡 一雅; 村上 琢哉
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

Infrared FEL lasing at Nihon University and blow up visible light
I. SATO; K. SATO; Y. MATSUBARA; K. HAYAKAWA; T. TANAKA; Y. HAYAKAWA; H. NAKAZAWA; K. YOKOYAMA; K. KANNO; T. SAKAI; K. ISHIWATA; H. INOKAWA; Y. NAKAMURA; E. HASHIMOTO; K. FUJIOKA; K. NAKAO; T. MURAKAMI; S. AMANI; S. FUKUDA; H. KOBAYASHI; A. ENOMOTO; S. OHSAWA; T. SHIDARA; S. YAMAGUCHI; T. KAMITANI; S. MICHIZONO; K. TSUCHIYA
Proc. of 13th Symposium on Accelerator Science and Technology, 2001, Not refereed, Not invited

IMPROVEMENT OF THE LONG PULSE OPERATION OF THE FEL LINAC AT NIHON UNIVERSITY
T. Tanaka; K. Hayakawa; I. Sato; K. Sato; Y. Hayakawa; K. Yokoyama; K. Kanno; T. Sakai
Proc. of the 2nd Asian Particle Accelerator Conference, 2001, Not refereed, Not invited

日大パラメトリックX線発生装置の概要
早川 恭史; 佐藤 勇; 佐藤 和男; 早川 建; 田中 俊成; 松原 洋一; 中澤 裕之; 横山 和枝; 菅野 浩一; 境 武志; 石渡 謙一郎; 猪川 弘康; 中村 吉宏; 中尾 圭佐; 橋本 英子; 藤岡 一雅; 村上 琢哉
Proc. of 26th Linear Accelerator Meeting in Japan, 2001, Not refereed, Not invited

Breakdown of the Back-diode of the Pulse Modulator for FEL Linac at Nihon University
K.Ishiwata; H.Inokawa; Y.Nakamura; K.Sato; I.Sato; K.Hayakawa; T.Tanaka; Y.Hayakawa; H.Kobayashi; H.Nakazawa; K.Yokoyama; K.Kanno; T.Sakai; K.Shinohara; N.Matsunaga; S.Anami; S.Fukuda; H.Homma
Proceedings of the 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

Construction of the infrared undulator at LEBRA
K.Hayakawa; T.Tanaka; Y.Hayakawa; Y.Matsubara; K.Sato; I.Sato; H.Nakazawa; K.Yokoyama; T.Sakai; K.Kanno; K.Ishiwata; H.Inokawa; Y.Nakamura
Proceedings of the 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

日大FEL赤外アンジュレーターの製作
K. Hayakawa; T. Tanaka; Y. Hayakawa; Y. Matsubara; K. Sato; I. Sato; H. Nakazawa; K. Yokoyama; T. Sakai; K. Kanno; K. Ishiwata; H. Inokawa; Y. Nakamra
Proc. of 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

低電力RF位相安定化試作回路の改良
T. Tanaka; K. Hayakawa; I. Sato; Y. Hayakawa; K. Sato; Y. Matsubara; I. Kawakami; H. Nakazawa; K. Yokoyama; K. Kanno; T. Sakai
Proc. of 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

関数発生器を用いた日大FEL用リニアックRF系の位相変動補償
K. Yokoyama; I. Sato; K. Hayakawa; T. Tanaka; K. Sato; Y. Hayakawa; Y. Matsubara; H. Nakazawa; T. Sakai; K. Kanno; H. Inokawa; Y. Nakamra; K. Ishiwata
Proc. of 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

125MeVリニアック用電子銃の解析
K. Kanno; I. Sato; K. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; H. Nakazawa; K. Yokoyama; T. Sakai; K. Ishiwata; H. Inokawa; Y. Nakamra; S. Michizono; S. Ohsawa; S. Fukuda
Proc. of 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

Sバンドクライストロンの長パルス動作の改善
T. Sakai; I. Sato; K. Hayakawa; T. Tanaka; Y. Hayakawa; K. Sato; H. Nakazawa; K. Yokoyama; K. Kanno; K. Ishiwata; H. Inokawa; Y. Nakamra
Proc. of 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

日大FEL赤外放射光の観測
Y. Hayakawa; I. Sato; K. Sato; K. Hayakawa; T. Tanaka; Y. Matsubara; H. Nakazawa; K. Yokoyama; K. Kanno; T. Sakai; K. Ishiwata; H. Inokawa; Y. Nakamura
Proc. of the 25th Linear Accelerator Meeting in Japan, 2000, Not refereed, Not invited

Measurement System for LEBRA Using a Thermoelectric Cooled CCD
Y.Hayakawa; I.Sato; K.Sato; K.Hayakawa; T.Tanaka; Y.Matsubara; I.Kawakami; H.Nakazawa; K.Yokoyama; K.Kanno; T.Sakai; S.Anami; H.Kobayashi; A.Enomoto; T.Kamitani; M.Kato; K.Tsuchiya
Proceedings of the 24th Linear Accelerator Meeting in Japan, 1999, Not refereed, Not invited

Improvement of the Klystron Heater Transformer for 125MeV Linac
K.Kanno; T.Tanaka; Y.Hayakawa; K.Sato; K.Hayakawa; H.Nakazawa; K.Yokoyama; T.Sakai; I.Sato; K.Kageshima; R.Kageshima; S.Fukuda
Proceedings of the 24th Linear Accelerator Meeting in Japan, 1999, Not refereed, Not invited

Beam Instability of FEL Linac at Nihon University
K.Hayakawa; T.Tanaka; Y.Hayakawa; Y.Matsubara; K.Sato; I.Sato; I.Kawakami; H.Nakazawa; K.Yokoyama; T.Sakai; K.Kanno
Proceedings of the 24th Linear Accelerator Meeting in Japan, 1999, Not refereed, Not invited

Low Power Rf Phase Stabilizer for LEBRA 125MeV Linac
T.Tanaka; K.Hayakawa; I.Sato; Y.Hayakawa; K.Yokoyama; K.Kanno; T.Sakai; H.Nakazawa; K.Sato; Y.Matsubara; I.Kawakami
Proceedings of the 24th Linear Accelerator Meeting in Japan, 1999, Not refereed, Not invited

The Present Status of LEBRA in Nihon University
I.Sato; I.Kawakami; K.Sato; Y.Matsubara; K.Hayakawa; T.Tanaka; Y.Hayakawa; H.Nakazawa; K.Yokoyama; K.Kanno; T.Sakai; A.Yagishita; K.Nakahara; S.Anami; S.Fukuda; H.Kobayashi; A.Enomoto; T.Ohsawa; S.Yamaguchi; S.Michizono; T.Suwada; T.Kamitani; M.Kato; K.Tsuchiya; A.Iwata; M.Kawai; K.Nohmaru; F.Oda
Proceedings of the 24th Linear Accelerator Meeting in Japan, 1999, Not refereed, Not invited

Development of Monochromatic X-ray Source using the Linac for FEL at Nihon University
Y. HAYAKAWA; I. SATO; K. SATO; K. HAYAKAWA; T. TANAKA; H. NAKAZAWA; K. YOKOYAMA; K. KANNO; T. SAKAI
Proc. of the 12th Symposium on Accelerator Science and Technology, 1999, Not refereed, Not invited

Beam characteristics of FEL linac at Nihon University
K.Yokoyama; I.Sato; K.Hayakawa; T.Tanaka; K.Sato; Y.Hayakawa; I.Kawakami; Y.Matsubara; H.Nakazawa; T.Sakai; S.Anami; S.Fukuda; H.Kobayashi; A.Enomoto; S.Ohsawa; M.Yamaguchi; T.Kamitani
Proceedings of the 23rd Linear Accelerator Meeting in Japan, 1998, Not refereed, Not invited

Beam injection system of FEL linac at Nihon University
T.Tanaka; K.Hayakawa; Y.Hayakawa; Y.Matsubara; K.Sato; I.Sato; I.Kawakami; H.Nakazawa; K.Yokoyama; K.Kanno; T.Sakai; K.Nakahara; S.Anami; S.Fukuda; S.Ohsawa; T.Kamitani
Proceedings of the 23rd Linear Accelerator Meeting in Japan, 1998, Not refereed, Not invited

A THEORETICAL-STUDY ON FATIGUE LIFE DISTRIBUTION OF METALLIC MATERIALS BASED ON THE DISTRIBUTION OF SURFACE-DEFECTS
T SAKAI; T TANAKA
BULLETIN OF THE JSME-JAPAN SOCIETY OF MECHANICAL ENGINEERS, 1982, Refereed, Not invited

日本大学電子線利用研究施設で発生するパラメトリックX線を用いた象牙質の平面イメージング観察
富樫侑也; 河野哲朗; 高橋由美子; 境武志; 渡辺新; 高村幸恵; 戸田みゆき; 玉村亮; 寒河江登志朗; 早川恭史; 岡田裕之
日本解剖学会総会・全国学術集会抄録集(CD-ROM), 2023

Development of C-band RF electron gun for injecting electron beam into laser plasma wakefields
境武志; 田中俊成; 長瀬敦; 益田伸; 増田剛正; 熊谷教孝; 大竹雄次
日本加速器学会年会(Web), 2023

HIGH POWER RF TEST OF A LINAC TO INJECT ULTRASHORT PULSED ELECTRON BEAMS INTO LASER PLASMA WAKEFIELDS
益田伸一; 増田剛正; 田中俊成; 境武志; 長瀬敦; 熊谷教孝; 大竹雄次
日本加速器学会年会(Web), 2023

自由電子レーザーの歯科分野応用への現状
河野哲朗; 寒河江登志朗; 境武志; 早川建; 全炳俊; 大垣英明; 早川恭史; 岡田裕之
日本放射光学会年会・放射光科学合同シンポジウム(Web), 2022

自由電子レーザー照射による菌体の石灰化能の変化
高村幸恵; 高村幸恵; 河野哲朗; 境武志; 全炳俊; 齋藤真規; 渡辺新; 戸田みゆき; 戸田みゆき; 玉村亮; 早川恭史; 大垣英明; 寒河江登志朗; 岡田裕之
日本解剖学会総会・全国学術集会講演プログラム・抄録集, 2022

Development and application of electron linac at LEBRA in Nihon University
Takeshi Sakai
Journal of the Japanese Society for Synchrotron Radiation Research, 31 May 2021, Refereed
Lead

Study of coherent edge radiation for the measurement of the bunch length in an electron bunch
Sei Norihiro; Zen Heishun; Ohgaki Hideaki; Ogawa Hiroshi; Tanaka Toshinari; Hayamawa Yasushi; Sakai Takeshi; Sumitomo Yosuke; Takahashi Yumiko; Hayakawa Ken; Nogami Kyoko
Meeting Abstracts of the Physical Society of Japan, 2018, Not refereed, Not invited

日大LEBRA電子線形加速器とTHz光源の開発
野上杏子; 早川建; 田中俊成; 早川恭史; 境武志; 佐藤勇; 清紀弘; 小川博嗣; 榎本收志; 大澤哲; 福田茂樹; 設楽哲夫; 古川和朗; 道園真一郎; 土屋公央; 吉田光宏; 山本樹
日本加速器学会年会(Web), 2016

高出力テラヘルツ光源開発のためのコヒーレントチェレンコフ放射の研究
清紀弘; 小川博嗣; 早川建; 田中俊成; 早川恭史; 中尾圭佐; 境武志; 野上杏子; 稲垣学; 全炳俊; 大垣英明; 高橋俊晴
第22回FELとHigh-Power Radiation研究会, 2016年1月21日, つくば, Jan. 2016, Not refereed, Not invited

20pAF-9 Low power test of 2.6-cell cryo-cooled RF-gun test cavity with input coupler
Sakai T; Tanaka T; Nakao K; Nogami K; Inagaki M; Yoshida M; Takatomi T; Urakawa J
Meeting Abstracts of the Physical Society of Japan, 2016, Not refereed, Not invited

Cold model cavity for 20-K cryocooled C-band photocathode RF gun
T. Sakai; K. Nogami; M. Inagaki; R. Nagashima; K. Nakao; K. Takatsuka; T. Tanaka; M. Fukuda; T. Takatomi; N. Terunuma; J. Urakawa; M. Yoshida; D. Satoh
IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference, 01 Jan. 2016, Not refereed, Not invited

Optimization of C-band RF input coupler as a mode converter for 20-K cryocooled photocathode RF gun
K. Takatsuka; T. Sakai; T. Tanaka; M. Inagaki; R. Nagashima; K. Nakao; K. Nogami; M. Fukuda; T. Takatomi; N. Terunuma; J. Urakawa; M. Yoshida; D. Satoh
IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference, 01 Jan. 2016, Not refereed, Not invited

線型加速器を用いたテラヘルツ帯高強度コヒーレント放射源の研究
清 紀弘; 小川博嗣; 早川建; 田中俊成; 早川恭史; 中尾圭佐; 境武志; 野上杏子; 稲垣学; 高橋俊晴
第25回日本赤外線学会研究発表会, 2015年10月22日, 春日井, Oct. 2015, Not refereed, Not invited

Development of Coherent Terahertz Wave Sources Using LEBRA and KU-FEL S-band Linacs
N. Sei; H. Ogawa; K. Hayakawa; T. Tanaka; Y. Hayakawa; K. Nakao; T. Sakai; K. Nogami; M. Inagaki; H. Ohgaki; H. Zen
Proceedings of FEL2015 (37th International Free Electron Laser Conference, 23-28 August, 2015, Daejeon, Korea), 2015, Not refereed, Not invited

22aDE-5 Low Temperature Characteristics of 2.6-Cell Cryo-Cooled RF-Gun Test Cavity
Sakai T; Tanaka T; Nakao K; Nogami K; Inagaki M; Yoshida M; Takatomi T; Shintomi T; Urakawa J
Meeting Abstracts of the Physical Society of Japan, 2015, Not refereed, Not invited

27aTM-13 Research and development of cryogenic photo-cathode RF-gun
Sakai Takeshi
Meeting abstracts of the Physical Society of Japan, 05 Mar. 2014

狭帯域検出器を用いたコヒーレント放射光観測によるバンチ長評価の研究
清紀弘; 小川博嗣; 早川建; 田中俊成; 早川恭史; 中尾圭佐; 境武志; 野上杏子; 稲垣学; 全炳俊; 大垣英明
日本放射光学会年会・放射光科学合同シンポジウム予稿集, 11 Jan. 2014, Not refereed, Not invited

Report on the 20th FEL and High Power Radiation Meeting
境 武志
加速器 : 日本加速器学会誌, 2014

Pulse structure measurement of near-infrared FEL in burst-mode operation of LEBRA linac
K. Nakao; K. Hayakawa; Y. Hayakawa; M. Inagaki; K. Nogami; T. Sakai; T. Tanaka; H. Zen
FEL 2012 - 34th International Free Electron Laser Conference, 2012, Refereed, Not invited

Phase-Contrast-Imaging Using Parametric X-ray Radiation Generated by Medium Size Linac
SAKAI Takeshi
非破壊検査 = JOURNAL OF THE JAPANESE SOCIETY FOR NON-DESTRUCTIVE INSPECTION, 01 Jun. 2008

24aWG-6 Features of phase-contrast imaging using parametric X-rays
Takahashi Yumiko; Iida Atsuo; Hayakawa Yasushi; Kuwada Takao; Sakai Takeshi; Nogami Kyoko; Nakao Keisuke; Tanaka Toshinari; Hayakawa Ken; Sato Isamu
Meeting abstracts of the Physical Society of Japan, 29 Feb. 2008

21pTC-8 Phase-contrast imaging using parametric X-rays
Takahashi Yumiko; Iida Atsuo; Hayakawa Yasushi; Kuwada Takao; Sakai Takeshi; Sato Isamu
Meeting abstracts of the Physical Society of Japan, 21 Aug. 2007

Current status of interaction experiments with plasma for realization of astrophysical fast radio burst on ground
Yoske Sumitomo; Tomohiko Asai (CST; Nihon Univ; Haruhisa Koguchi (AIST; Kazuhiro Kusaka; Sorata Iura (CST; Nihon Univ; Yasushi Hayakawa (LEBRA; Nihon Univ; Daichi Kobayashi (CST; Nihon Univ; Takeshi Sakai (LEBRA; Nihon Univ; Taichi Seki
the 20th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2023, Particle Accelerator Society of Japan, Not invited

Research towards attosecond x-ray pulse generation using free-electron laser oscillators: 2023
Ryoichi Hajima; Keigo Kawase; Heishun Zen; Hideaki Ohagaki; Yasushi Hayakawa; Takeshi Sakai
the 20th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2023, Particle Accelerator Society of Japan, Not invited

Development of vacuum protection system for a plasma interaction experiment
Koki Ito; Yoske Sumitomo; Kokoro Uchiyama; Ayu Onoma; Kanta Kudou; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

Assessment of a hand-made scintillator radiation monitor by an ion chamber toward a point dose evaluation in accelerator operations
Sayaka Yamato; Yoske Sumitomo; Mizuki Kurata; Hiroto Kiba; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

Development of C-band RF electron gun for injecting electron beam into laser plasma wakefields
Takeshi Sakai; Toshinari Tanaka; Atushi Nagase; Shinichi Masuda; Takemasa Masuda; Noritaka Kumagai; Yuji Otake
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

Dependence of FEL macropulse-waveform on optical-resonator detuning in LEBRA-FEL, Nihon University
Atsushi Nagase; Yasushi Hayakawa; Takeshi Sakai; Ken Hayakawa; Toshinari Tanaka; Yumiko Takahashi; Yoske Sumitomo
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

An experiment of independent light pulse interactions for a high repetition mid-IR frequency comb
Tsukino Kubota; Yoske Sumitomo; Gai Notsu; Ohga Hamano; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa; Atsushi Nagase
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

High power rf test of a linac to inject ultlashort pulsed electron beams into laser plasma wakefields
Shinichi Masuda; Takemasa Masuda; Toshinari Tanaka; Takeshi Sakai; Atsushi Nagase; Noritaka Kumagai; Yuji Otake
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

Status report of 125 MeV electron linac at LEBRA in Nihon University
Takeshi Sakai; Yasushi Hayakawa; Yoske Sumitomo; Ken Hayakawa; Toshinari Tanaka; Yumiko Takahashi; Atushi Nagase; Tsukino Kubota; Sayaka Yamato; Koki Ito; Norihiro Sei; Hiroyasu Ego; Shinichiro Michizono; Kimichika Tsuchiya; Tsuyoshi Suwada; Mitsuhiro Yoshida; Satoshi Ohsawa; Shigeki Fukuda; Kazuro Furukawa; Shigeru Yamamoto; Takakazu Shintomi; Atsushi Enomoto
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

The development and the current status of the accelerator-based light sources at LEBRA, Nihon University
Yasushi Hayakawa; Ken Hayakawa; Atsushi Nagase; Takeshi Sakai; Fumio Shishikura; Yoske Sumitomo; Yumiko Takahashi; Toshinari Tanaka
the 20th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2023, Particle Accelerator Society of Japan, Not invited

Repeatability Evaluation of Medicine Absorption Peaks Using Terahertz Waves at LEBRA
Hikaru Kinoshita; Norihiro Sei; Takeshi Sakai; Akihito Otani
ICEE2022, Jun. 2022, The Korean Institute of Electrical Engineers, Not invited

テラヘルツ波分光計測における水蒸気の吸収軽減および吸収補正に関する検討
山添亮、木下燿(日本大学大学院)、清紀弘(AIST)、境武志、大谷昭仁(日本大学)
電気学会 計測/知覚情報合同研究会, Dec. 2021, 電気学会 計測/知覚情報合同研究会, Not invited

Development of a radiation monitor for undulator demagnetization at Nihon University
Hiroki Okazaki; Ayumu Kurosawa; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Ken Hayakawa; Kyoko Nogami; Toshinari Tanaka (CST; Nihon U.)
The 17th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2020, Particle Accelerator Society of Japan, Not invited

Effect of shut-off of RF window breakdown during the long-pulse operation of S-band klystron
Toshinari Tanaka; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa; Yoske Sumitomo; Yumiko Takahashi; Kyoko Nogami
The 17th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2020, Particle Accelerator Society of Japan, Not invited

Development of coherent THz quasi-monochromatic undulator radiations at Nihon University
Yoske Sumitomo; Takeshi Sakai (CST; Nihon U.); Norihiro Sei (AIST); Ken Hayakawa; Yasushi Hayakawa; Ayumu Kurosawa; Kyoko Nogami; Hiroki Okazaki; Toshinari Tanaka (CST; Nihon U.)
The 17th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2020, Particle Accelerator Society of Japan, Not invited

Current status of a test stacking at enhancement cavity for IR-FEL oscillator
Ayumu Kurosawa; Yoske Sumitomo (CST; Nihon U.); Keigo Kawase; Ryoichi Hajima (QST); Yasushi Hayakawa; Takeshi Sakai (CST; Nihon U.)
The 17th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2020, Particle Accelerator Society of Japan, Not invited

Development of coherent edge radiation source at LEBRA in Nihon University
Takeshi Sakai (LEBRA; Nihon University); Norihiro Sei (AIST); Yasushi Hayakawa; Yoske Sumitomo; Ken Hayakawa; Toshinari Tanaka; Kyoko Nogami; Yumiko Takahashi (LEBRA; Nihon University); Hiroki Okazaki; Ayumu Kurosawa; Hiroto Saito; Takumi Hirohara (CST; Nihon University)
The 17th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2020, Particle Accelerator Society of Japan, Not invited

Status report of 125 MeV electron linac and light sourde development at Nihon University
Kyoko Nogami; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Ken Hayakawa; Toshinari Tanaka (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Tsuyoshi Suwada; Shigeki Fukuda; Atsushi Enomoto; Satoshi Ohsawa; Shigeru Yamamoto; Takakazu Shintomi (KEK)
The 17th Annual Meeting of Particle Accelerator Society of Japan, Sep. 2020, Particle Accelerator Society of Japan, Not invited

Current status of imaging experiments using LEBRA PXR source
Yasushi Hayakawa; Ken Hayakawa; Kyoko Nogami; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Toshinari Tanaka (LEBRA; Nihon U. )
The 16th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2019, Particle Accelerator Society of Japan, Not invited

Development of a high-repetition-rate attosecond X-ray source based on a free-electron laser
Ryoichi Hajima; Keigo Kawase; Ryoji Nagai (QST); Hideaki Ogaki; Heishun Zen (Kyoto U.); Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo (Nihon U.); Miho Shimada; Tsukasa Miyajima (KEK)
The 16th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2019, Particle Accelerator Society of Japan, Not invited

Development of An Enhancement Cavity for Pulse Stacking from IR-FEL Oscillator
Yoske Sumitomo (Nihon U.); Keigo Kawase; Ryoichi Hajima (QST); Ayumu Kurosawa; Yasushi Hayakawa; Takeshi Sakai (Nihon U.)
The 16th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2019, Particle Accelerator Society of Japan, Not invited

Development of coherent edge radiation source at FEL beam line in LEBRA
Takeshi Sakai (LEBRA; Nihon University); Norihiro Sei (AIST); Yasushi Hayakawa; Yoske Sumitomo; Kyoko Nogami; Toshinari Tanaka; Ken Hayakawa; Yumiko Takahashi (LEBRA; Nihon University); Hiroshi Ogawa (AIST); Sou Uehara; Masaki Kimura; Hiroki Okazaki; Ayumu Kurosawa (LEBRA; Nihon University)
The 16th Annual Meeting of Particle Accelerator Society of Japan, Jul. 2019, Particle Accelerator Society of Japan, Not invited

Fundamental design of a LINAC to inject ultra-short pulse electron beams into laser plasma wake fields
Yuji Otake; Takemasa Masuda; Shinichi Masuda (Japan Synchrotron Radiation Research Institute); Toshinari Tanaka; Takeshi Sakai (Nihon University); Yuya Koshiba; Seiya Otsuka (Waseda University); Kazuyuki Sakaue (The University of Tokyo); Noritaka Kumagai (Japan Synchrotron Radiation Research Institute)
The 16th Annual Meeting of Particle Accelerator Society of Japan, Jul. 2019, Particle Accelerator Society of Japan, Not invited

Status Report of 125 MeV Electron Linac at Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Tsuyoshi Suwada; Shigeki Fukuda; Atsushi Enomoto; Satoshi Ohsawa; Shigeru Yamamoto; Takakazu Shintomi; Sato Isamu (KEK)
The 16th Annual Meeting of Particle Accelerator Society of Japan, Jul. 2019, Particle Accelerator Society of Japan, Not invited

日本大学における高強度コヒーレントテラヘルツ光源の開発
境 武志(日大)、清 紀弘(産総研)、田中 俊成 、早川 恭史、住友 洋介、早川 建、高橋 由美子、野上 杏子(日大)、小川 博嗣(産総研)
第32回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2019, 第32回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

赤外自由電子レーザー施設におけるテラヘルツ帯コヒーレントエッジ放射源の開発
清 紀弘、小川 博嗣(産総研)、全 炳俊、大垣 英明(京大エネルギー理工研)、田中 俊成 、早川 恭史、境 武志、住友 洋介、高橋 由美子、早川 建、野上 杏子(日大)
第32回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2019, 第32回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

Computed tomography utilizing LEBRA-PXR source at Nihon University
Yasushi Hayakawa; Ken Hayakawa; Kyoko Nogami; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Toshinari Tanaka (LEBRA; Nihon U. )
The 15th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2018, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Simulation of Zero-Detuning Oscillation from Dynamical Phase Modulation at Nihon U. Oscillator FEL
Yoske Sumitomo; Yasushi Hayakawa; Ken Hayakawa; Kyoko Nogami; Takeshi Sakai; Yumiko Takahashi; Toshinari Tanaka (LEBRA; Nihon U.)
The 15th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2018, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Simulation of temperature rise and super-high gradient operation of C-band cryogenic copper cavity
Toshinari Tanaka; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa; Kyoko Nogami; Isamu Sato; Yoske Sumitomo; Yasuyuki Yamada; Takato Yoshida (LEBRA; Nihon University)
The 15th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2018, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Developments of High Power Coherent Terahertz Wave Sources at LEBRA Linac in Nihon University
Takeshi Sakai (LEBRA; Nihon University); Norihiro Sei (AIST); Toshinari Tanaka; Yasushi Hayakawa; Yoske Sumitomo; Kyoko Nogami; Yumiko Takahashi; Ken Hayakawa (LEBRA; Nihon University); Hiroshi Ogawa (AIST)
The 15th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2018, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Status of electron linac operation and THz source development at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Yumiko Takahashi; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Shigeru Yamamoto; Takakazu Shintomi (KEK)
The 15th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2018, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

日本大学LEBRA電子線形加速器におけるテラヘルツ光源開発と利用
Takeshi Sakai (LEBRA; Nihon University); Norihiro Sei (AIST); Toshinari Tanaka; Yasushi Hayakawa; Yoske Sumitomo; Kyoko Nogami; Yumiko Takahashi; Ken Hayakawa (LEBRA; Nihon University); Hiroshi Ogawa (AIST)
日本物理学会第73回年次大会, Mar. 2018, 東京理科大学, Not invited

電子バンチ長計測のためのコヒーレントエッジ放射の研究
清 紀弘、小川 博嗣(産総研)、田中 俊成、早川 恭史、境 武志、住友 洋介、高橋 由美子、早川 建、野上 杏子(日大)、全 炳俊、大垣 英明(京大エネルギー理工)
日本物理学会第73回年次大会, Mar. 2018, 東京理科大学, Not invited

赤外自由電子レーザー施設におけるコヒーレント放射を用いた電子ミクロパルスのバンチ長の観測
清 紀弘、小川 博嗣(産総研)、全 炳俊、大垣 英明(京大エネルギー理工研)、田中 俊成 、早川 恭史、境 武志、住友 洋介、高橋 由美子、早川 建、野上 杏子(日大)
第31回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2018, 第31回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

日本大学電子線利用研究施設における高強度テラヘルツ光源開発
境 武志、田中 俊成、早川 恭史、住友 洋介、早川 建、高橋 由美子、野上 杏子、清 紀弘、小川博嗣
第31回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2018, 第31回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

日本大学電子線利用研究施設における高強度テラヘルツ光源開発
境 武志; 田中 俊成; 早川 恭史; 住友 洋介; 早川 建; 高橋 由美子; 野上 杏子; 清 紀弘; 小川博嗣
第31回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2018, 第31回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

Research and development of the high power THz light sources at LEBRA in Nihon University
Takeshi Sakai; Toshinari Tanaka; Yasushi Hayakawa; Yoske Sumitomo; Ken Hayakawa; Kyoko Nogami (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST)
The 14th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2017, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Optimization of multi-cell structure for cryo photocathode RF-gun
Yasuyuki Yamada; Takato Yoshida; Toshinari Tanaka (Graduate School of Science and Technology; Nihon University); Takeshi Sakai; Kyoko Nogami; Ken Hayakawa; Yasushi Hayakawa; Yousuke Sumitomo (LEBRA; Nihon University)
The 14th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2017, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Possibility of high quality electron beam extraction by high electric field in C-band 20-K cooled RF gun
Toshinari Tanaka; Takeshi Sakai; Ken Hayakawa; Yasushi Hayakawa; Kyoko Nogami; Yosuke Sumitomo; Yasuyuki Yamada; Takato Yoshida; Isamu Sato (LEBRA; Nihon University)
The 14th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2017, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Simulation of velocity bunching optimization for bright THz light source from oscillator FEL
Yoske Sumitomo; Ken Hayakawa; Yasushi Hayakawa; Kyoko Nogami; Takeshi Sakai; Toshinari Tanaka (IQS; Nihon U.)
The 14th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2017, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Status of electron linac and light source at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Yoske Sumitomo; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Takakazu Shintomi; Shigeru Yamamoto (KEK)
The 14th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2017, Particle Accelerator Society of Japan, Nagaoka University of Technology, Not invited

Research and Development of Terahertz sSources at LEBRA in Nihon University
境 武志; 田中俊成; 早川恭史; 早川 建; 野上杏子; 清 紀弘; 小川 博嗣
日本物理学会 第72回年次大会, Mar. 2017, 大阪大学, Not invited

日本大学電子線利用研究施設における高強度テラヘルツ光源開発
境 武志、田中 俊成、早川 恭史、早川 建、野上 杏子(日本大学量子科学研究所)、清 紀弘、小川博嗣(産総研)
第30回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2017, 第30回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

赤外自由電子レーザー施設におけるコヒーレント放射を用いた電子バンチ長評価の研究
清紀弘,小川博嗣,田中俊成,早川恭史,境武志,早川建,野上杏子, 全炳俊,大垣英明
第30回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2017, 第30回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

DEVELOPMENT OF THE SYSTEM SUPERPOSING THZ-WAVES ONTO AN X-RAY BEAM AT THE LEBRA-PXR BEAMLINE
Yasushi Hayakawa; Ken Hayakawa; Keisuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihin Univ.); Norihiro Sei (AIST); Toshinari Tanaka (LEBRA; Nihin Univ.)
The 13th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2016, Particle Accelerator Society of Japan, National Institute of Radiological Sciences, Not invited

Low-Temperature Test of 20K C-Band 2.6 Cell RF-Gun Test Cavity with Input Coupler
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Kento Takatsuka; Ken Hayakawa; Yasushi Hayakawa (LEBRA; Nihon University); Toshikazu Takatomi; Daisuke Satoh; Masafumi Fukuda; Mitsuhiro Yoshida; Nobuhiro Terunuma; Juniji Urakawa (KEK)
The 13th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2016, Particle Accelerator Society of Japan, National Institute of Radiological Sciences, Not invited

Status of Electron Linac and THz Source Development at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida; Shigeru Yamamoto (KEK)
The 13th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2016, Particle Accelerator Society of Japan, National Institute of Radiological Sciences, Not invited

RF入力カプラー付き2.6セルクライオ光陰極高周波電子銃用試験空洞の低電力試験
境武志; 田中俊成; 中尾圭佐; 野上杏子; 稲垣学; 高塚健人; 吉田光宏; 高富俊和; 浦川順治; 照沼信浩
The 71th Annual Meeting, Mar. 2016, 東北学院大学, Not invited

日本大学LEBRAにおけるテラヘルツ帯CTR光源の開発
清 紀弘、小川博嗣(産総研)、早川 建、田中 俊成、早川 恭史、中尾 圭佐、境 武志、野上 杏子、稲垣学(日本大学量子科学研究所)、髙橋俊晴(京大原子炉)
第29回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2016, 第29回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

Low Temperature Property of Cryogenic Photocathode RF-gun Test Cavity with Input Coupler
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Kento Takatsuka; Ryoko Nagashima; Ken Hayakawa; Yasushi Hayakawa (LEBRA); Toshikazu Takatomi (KEK); Daisuke Sato (Tokyo Tech); Masafumi Fukuda; Mitsuhiro Yoshida; Nobuhiro Terunuma; Junji Urakawa (KEK)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

Low Temperature Property of 2.6-CELL Cryogenic Photocathode RF-gun Test Cavity
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Kento Takatsuka; Ryoko Nagashima; Ken Hayakawa; Yasushi Hayakawa (LEBRA); Toshikazu Takatomi (KEK); Daisuke Sato (Tokyo Tech); Masafumi Fukuda; Mitsuhiro Yoshida; Nobuhiro Terunuma; Junji Urakawa (KEK)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

Design of wavelength tunable coherent X-ray source and beam loading
Jibong Hyun (SOKENDAI); Mitsuhiro Yoshida; Masanori Satoh (KEK); Takeshi Sakai; Yasushi Hayakawa; Toshinari Tanaka; Ken Hayakawa; Isamu Sato (Nihon University); Katsumi Endo (TOYAMA Co.; Ltd)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

CONCEPT DESIGN OF A THz BEAMLINE SUPERIMPOSED ON AN X-RAY BEAMLINE AT LEBRA
Yasushi Hayakawa; Ken Hayakawa; Manabu Inagaki; Keisuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihon U.); Norihiro Sei (AIST); Toshinari Tanaka (LEBRA; Nihon U.)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

Status of Electron Linac Operation and Light Source at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Manabu Inagaki; Kento Takatsuka; Ryoko Nagashima; Isamu Sato (LEBRA; Nihon University); Norihiro Sei; Hiroshi Ogawa (AIST); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Shigeru Yamamoto (KEK)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

Behavior of X-ray Topograph for Parametric X-ray Source Using a Wedge-shaped Target Crystal
Manabu Inagaki; Yasushi Hayakawa; Ken Hayakawa; Toshinari Tanaka; Keisuke Nakao; Takeshi Sakai; Kyoko Nogami; Kento Takatsuka; Isamu Sato (LEBRA; Nihon University)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

Simulation of Electromagnetic Field for 20K Cooled Photocathode RF Gun
Keisuke Nakao; Toshinari Tanaka; Takeshi Sakai; Kyoko Nogami; Manabu Inagaki; Kento Takatsuka; Ryoko Nagashima; Ken Hayakawa; Yasushi Hayakawa (LEBRA; Nihon University); Toshikazu Takatomi; Masafumi Fukuda; Mitsuhiro Yoshida; Nobuhiro Terunuma (KEK)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

Simulation of RF-input Coupler Structure for Cryogenic Photocathode RF-gun
Kento Takatsuka (Graduate School of Science and Technology; Nihon University); Toshinari Tanaka; Takeshi Sakai; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Ken Hayakawa; Yasushi Hayakawa (LEBRA; Nihon University); Nobuhiro Terunuma; Toshikazu Takatomi; Masafumi Fukuda; Mitsuhiro Yoshida (KEK)
The 12th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2015, Particle Accelerator Society of Japan,, Not invited

2.6セルクライオ光陰極高周波電子銃用試験空洞の低温特性
境武志,田中俊成,中尾圭佐,野上杏子,稲垣学,吉田光宏,高富俊和,浦川順治,新冨孝和
The 70th Annual Meeting, Mar. 2015, 早稲田大学, Not invited

日本大学LEBRAにおける赤外FEL-テラヘルツCSR複合ビームラインの開発
清 紀弘、小川博嗣(産総研)、早川 建、田中 俊成、早川 恭史、中尾 圭佐、境 武志、野上 杏子、稲垣学(日本大学量子科学研究所)、髙橋俊晴(京大原子炉)
第28回日本放射光学会年会・放射光科学合同シンポジウム, Jan. 2015, 第28回日本放射光学会年会・放射光科学合同シンポジウム組織委員会, Not invited

Developments of Coherent X-ray Source based on Cryogenic Electron Linac
Isamu Satou; Takakazu Shintomi; Ken Hayakawa; Toshinari Tanaka; Takeshi Sakai; Keisuke Nakao; Kyoko Nogami; Manabu Inakaki; Takeshi Suwada; Masanori Satou; Shinichiro Michizono; Chigeki Fukuda; Michihiro Yoshida; Seiya Yamaguchi; Hiroshi Iwase; Masayoshi Wake; Toshikazu Takatomi; Kenji Ueno; Katsumi Endo; Jun Nakagawa; Tetsuro Mochizuki; Hisataka Takenaka; Hiroyuki Hatanaka; Toshimasa Maruyama; Akihiro Iino; Chibon Hyon; Uichiro Uetake; Kibatsu Shinohara; Atsushi Miura; Tochio Sakamoto; Nobukuni Morohashi
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

Status of Electron Linac Operation at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Manabu Inagaki; Kento Takatsuka; Ryoko Nagashima (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida (KEK; Accelerator Laboratory); Shigeru Yamamoto (KEK; Institute of Materials Structure Science)
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

Long-term Behavior of the Electron Gun Emission Property at LEBRA Linac
Manabu Inagaki; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Kyoko Nogami (Laboratory for Electron Beam Research and Application; Nihon University)
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

Design of the transport at ERL coherent X-ray source
Jibong Hyun (Sokendai); Mitsuhiro Yoshida; Masanori Satoh (KEK); Takeshi Sakai; Yasushi Hayakawa; Toshinari Tanaka; Ken Hayakawa (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Katsumi Endo (TOYAMA CO.Ltd.)
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

Characteristics of Test Cavity for Cryogenic Photocathode RF-gun
Takeshi Sakai; Toshinari Tanaka; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki; Kento Takatuka; Kyoko Nagashima (LEBRA; Nihon University); Toshikazu Takatomi; Masafumi Fukuda (KEK); Takakazu Shintomi (ARISH; Nihon University); Junji Urakawa; Mituhiro Yoshida (KEK); Ken Hayakawa; Yasushi Hayakawa (LEBRA; Nihon University)
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

DEVELOPMENT OF A RELIABLE C-BAND ACCELERATOR
Kenichi Kaneta; Kousuke Nakanishi; Masashi Yamamoto; Koichi Kanno; Eiji Tanabe (AET Inc.); Takeshi Sakai (LEBRA; Nihon University)
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

Development of a C-band prebuncher
Masashi Yamamoto; Kenichi Kaneta; Kosuke Nakanishi; Koichi Kanno; Eiji Tanabe (AET Inc.); Takeshi Sakai (LEBRA; Nihon University)
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

Measurement of Intensity Distribution of CSR at LEBRA PXR Beamline
Keisuke Nakao (LEBRA); Norihiro Sei (AIST); Takeshi Sakai; Ken Hayakawa; Toshinari Tanaka; Kyoko Nogami; Manabu Inagaki (LEBRA)
The 11th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2014, Particle Accelerator Society of Japan, Japan Atomic Energy Agency, Not invited

クライオ光陰極高周波電子銃の研究開発
境武志,田中俊成,中尾圭佐,野上杏子,稲垣学,新富孝和,浦川順治,吉田光弘,高富俊和
日本物理学会 第69回年次大会, Mar. 2014, 東海大学, Not invited

Design optimization of 100 kV DC-gun wehnelt electrode for linac at LEBRA
Takeshi Sakai; Toshinari Tanaka; Ken Hayakawa; Yasushi Hayakawa; Keisuke Nakao; Kyoko Nogami; Manabu Inagaki (LEBRA; Nihon University)
The 10th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Particle Accelerator Society of Japan, Nagoya University, Not invited

Status of Electron Linac Operation and Application of Light Source at LEBRA in Nihon University
Kyoko Nogami; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Manabu Inagaki (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Atsushi Enomoto; Satoshi Ohsawa; Shigeki Fukuda; Tetsuo Shidara; Kazuro Furukawa; Shinichiro Michizono; Kimichika Tsuchiya; Mitsuhiro Yoshida (KEK Accelerator Laboratory); Shigeru Yamamoto (KEK Institute of Materials Structure Science)
The 10th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Particle Accelerator Society of Japan, Nagoya University, Not invited

The operator console for accelerator control systems on a virtual machine.
Keisuke Nakao; Takeshi Sakai; Ken Hayakawa (LEBRA)
The 10th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Particle Accelerator Society of Japan, Nagoya University, Not invited

Influence of X-ray topograph for image acquisition using parametric X-ray radiation
Manabu Inagaki; Kyoko Nogami; Yasushi Hayakawa; Ken Hayakawa; Toshinari Tanaka; Takeshi Sakai; Keisuke Nakao (Laboratory for Electron Beam Research and Application; Nihon University); Isamu Sato (Advanced Research Institute for the Sciences and Humanities; Nihon University)
The 10th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Particle Accelerator Society of Japan, Nagoya University, Not invited

TEST OF DIAMOND SINGLE CRYSTALS IN THE PARAMETRIC X-RAY SOURCE BASED ON A DOUBLE-CRYSTAL SYSTEM
Yasushi Hayakawa (LEBRA; Nihon University); Takashi Shizukuishi; Naoya Ishibashi (Nihon University School of Medicine); Ken Hayakawa; Manabu Inagaki; Kesuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Toshinari Tanaka (LEBRA; Nihon University)
The 10th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2013, Particle Accelerator Society of Japan, Nagoya University, Not invited

Development of the short focal convergence system of coherent X-rays
Isamu Sato; Takakazu Shintomi; Koichi Ishikawa; Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Keishuke Nakao; Takeshi Sakai; Kyoko Nokami; Manabu Inakaki; Takao Kuwata (nihon-university); Takeshi Suwada; Masanori Satou; Shinishirou Michizono; Noriyuki Igarashi; Hiroshi Iwahe; Yumiko Takahashi (KEK); Katsumi Endou; Jun Nakagawa (toyama); Atsushi Miura (nikoha); Kenji Yajima (MMC)
The 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2012, Particle Accelerator Society of Japan, Osaka University, Not invited

Status of Electron Linac Operation and Application at Nihon University
Toshinari Tanaka; Ken Hayakawa; Yasushi Hayakawa; Takeshi Sakai; Kyoko Nogami; Keisuke Nakao; Manabu Inagaki (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Atsushi Enomoto; Shigeki Fukuda; Satoshi Ohsawa; Kazuro Furukawa; Tsuyoshi Suwada; Shinichiro Michizono; Masanori Satoh (Accelerator Laboratory; KEK)
The 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2012, Particle Accelerator Society of Japan, Osaka University, Not invited

Design of the 50MeV Linac of the Central Japan Synchrotron Radiation Facility
○Masashi Yamamoto; Masako Simano; Ed Villasenor; Kosuke Nakanishi; Taku Ito; Takeshi Sakai; Tetsuichi Higuchi; Masaru Murakami; Naoki Nakamura; Jyoichi Kusano; Hiroji Mizushima; Eiji Tanabe; Takio Tomimasu (AET); Yusuke Ishikawa (YDK); Yujiro Tjima; Teruyasu Ngafuchi; Koichi Nakayama (Toshiba); Yoshifumi Takashima; masahito Hosaka; Naoto Yamamoto; Kiyoshi Tkami; Atsushi Mano; Taku Takano (Nagoya Univ.); Hiroyuki Morimoto (Aichi Science & Technology Fundation); Masahiro Katoh (UVSOR); Yoichiro Hori (KEK); Shigeki Sasaki (JASRI/SPring-8); Shigeru Koda (SAGA-LS)
The 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2012, Particle Accelerator Society of Japan, Osaka University, Not invited

LIGHT EMISSION FROM THE NONLINEAR OPTICAL CRYSTAL BY FEL IRRADIATION
Ken Hayakawa; Toshinari Tanaka; Yasushi Hayakawa; Takeshi Sakai; Keisuke Nakao; Kyouko Nogami; Manabu Inagaki (LEBRA)
The 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2012, Particle Accelerator Society of Japan, Osaka University, Not invited

Parametric X-ray generation using the burst-mode beam at LEBRA and the feasibility of the application
Yasushi Hayakawa; Ken Hayakawa; Manabu Inagaki; Keisuke Nakao; Kyoko Nogami; Takeshi Sakai (LEBRA; Nihon University); Isamu Sato (ARISH; Nihon University); Toshinari Tanaka (LEBRA; Nihon University)
The 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2012, Particle Accelerator Society of Japan, Osaka University, Not invited

Improvement in XANES Measurement Using Parametric X-ray Source
Manabu Inagaki; Kyoko Nogami; Yasushi Hayakawa; Ken Hayakawa; Toshinari Tanaka; Keisuke Nakao; Takeshi Sakai (Laboratory for Electron Beam Research and Application (LEBRA); Nihon University); Isamu Sato (Advanced Research Institute for the Sciences and Humanities (ARISH); Nihon University)
The 9th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2012, Particle Accelerator Society of Japan, Osaka University, Not invited

Improvement of the High Brightness X-ray Generator with the U-Shaped Rotating-Anticathode
Takeshi Sakai; Satoshi Ohsawa; Noriyoshi Sakabe; Takashi Sugimura; Mitsuo Ikeda
The 8th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2011, Particle Accelerator Society of Japan, KEK, Not invited

IMPROVEMENT OF THE COMBINED FUNCTION MAGNET FOR A HIGHLY BRIGHT X-RAY GENERATOR
Takeshi Sakai; Satoshi Ohsawa; Noriyoshi Sakabe; Takashi Sugimura; Mitsuo Ikeda
The 7th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2010, Particle Accelerator Society of Japan, RIKEN Harima Campus, Not invited

ANALYSIS OF INFLUENCE OF TEMPERATURE OF COOLING WATERON ELECTRON BEAM AT LEBRA 125MeV LINAC
K. Nakao; K. Hayakawa; T. Tanaka; Y. Hayakawa; I. Sato; K. Nogami; M. Inagaki; T. Sakai
The 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Particle Accelerator Society of Japan, JAEA, Not invited

GENERATION OF HIGH ENERGY PARAMETRIC X-RAYS USINGSi(220) CRYSTAL AS A TARGET
Y. Hayakawa; K. Hayakawa; M. Inagaki; T. Kuwada; K. Nakao; K. Nogami; T. Sakai; I. Sato; Y. Takahashi; T. Tanaka; T. Sakae
The 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Particle Accelerator Society of Japan, JAEA, Not invited

OPTIMIZATION OF THE BENDING MAGNET FOR A HIGHLY BRIGHT X-RAY GENERATOR
T. Sakai; S. Ohsawa; T. Sugimura; M. Ikeda; N. Sakabe
The 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Particle Accelerator Society of Japan, JAEA, Not invited

STATUS OF ELECTRON LINAC AND LIGHT SOURCES AT LEBRA IN NIHON UNIVERSITY
T. Tanaka; K. Hayakawa; Y. Hayakawa; Y. Takahashi; T. Kuwada; T. Sakai; K. Nogami; K. Nakao; M. Inagaki; I. Sato; A. Enomoto; S. Fukuda; S. Ohsawa; K. Furukawa; S. Michizono; K. Tsuchiya; S. Wakatsuki; S. Yamamoto
The 6th Annual Meeting of Particle Accelerator Society of Japan, Aug. 2009, Particle Accelerator Society of Japan, JAEA, Not invited

Apr. 2024 - Present
The Japan Society of Infrared Science and Technology

Oct. 2006 - Present
The Physical Society of Japan

Dec. 2005 - Present
The Japanese Society for Synchrotron Radiation Research

Apr. 2004 - Present
Particle Accelerator Society of Japan

Research on tunable wavelength optical vortex source in high-power terahertz coherent transition radiation
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Apr. 2021 - Mar. 2024
Takeshi Sakai; Norihiro Sei

Development of an intense terahertz-wave source based on coherent Cherenkov radiation matched to circular plane wave
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Apr. 2019 - Mar. 2021
Norihiro Sei

テラヘルツ帯高強度コヒーレントエッジ放射の利用による自由電子レーザー制御の研究
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Apr. 2016 - Mar. 2019
Norihiro Sei

テラヘルツ波のパルス蓄積による高強度化に関する研究
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Apr. 2016 - Mar. 2018
Takeshi Sakai

Study on element-sensitive tomography using parametric X-ray radiation
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Apr. 2013 - Mar. 2016
Yasushi Hayakawa; Toshiro Sakae

パラメトリックX線放射とテラヘルツ波の2帯域光源複合照射のための基礎研究
日本大学, 平成26年度 科学研究費（若手研究）獲得支援研究, Apr. 2014 - Mar. 2015
Takeshi Sakai