SAKAI Takeshi

サカイタケシ | SAKAI Takeshi

Affiliation and department：
Job title： Associate Professor

Research field (3)： Electronic devices and equipment , Quantum beam science , Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research keywords (19)： 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

Research theme for competitive and other funds (6)：

2021 - 2024 Research on tunable wavelength optical vortex source in high-power terahertz coherent transition radiation
2019 - 2021 Development of an intense terahertz-wave source based on coherent Cherenkov radiation matched to circular plane wave
2016 - 2019 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
2016 - 2018 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
2013 - 2016 Study on element-sensitive tomography using parametric X-ray radiation

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Papers (244)：

Keigo Kawase, Heishun Zen, Takeshi Sakai, Yasushi Hayakawa, Hideaki Ohgaki, Ryoichi Hajima. Beam characterization of mid-infrared free electron laser to drive high-harmonic generation. Japanese Journal of Applied Physics. 2024. 63. 7. 072001-072001
Yasushi Hayakawa, Takeshi Sakai. Radiation-induced demagnetization of the undulator magnet-array for infrared-FEL and the repair dealing at Nihon University. Journal of the Japanese Society for Synchrotron Radiation Research. 2023. 36. 3. 140-149
Yuma Sasamoto, Tetsuro Kono, Takeshi Sakai. Dependence of Pit Formation in Hard Tissue of Human Teeth on Free Electron Laser Pulse Structures. International Journal of Oral-Medical Sciences. 2023. 21. 4. 137-146
Tetsuro Kono, Toshiro Sakae, Yumiko Takahashi, Takeshi Sakai, Kyoko Nogami, Ken Hayakawa, Arata Watanabe, Toshikazu Uchiyama, Yukie Takamura, Yuuya Togashi, et al. Diffraction-enhanced Imaging of Human Tooth Using Highly Spatial Coherent Parametric X-ray Generated by a Small LINAC System. International Journal of Oral-Medical Sciences. 2022. 21. 1-2. 23-31
KONO Tetsuro, SAKAE Toshiro, SAKAI Takeshi, ZEN Heishun, OHGAKI Hideaki, HAYAKAWA Yasushi and OKADA Hiroyuki. Application of Free Electron Laser in Dentistry -From Research in LEBRA-FEL and KU-FEL-. Journal of Japan Laser Processing Society. 2022. 29. 3. 36-41

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MISC (22)：

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, et al. 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. 日本解剖学会総会・全国学術集会抄録集(CD-ROM). 2023. 128th
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. Development of C-band RF electron gun for injecting electron beam into laser plasma wakefields. 日本加速器学会年会(Web). 2023. 20th
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. HIGH POWER RF TEST OF A LINAC TO INJECT ULTRASHORT PULSED ELECTRON BEAMS INTO LASER PLASMA WAKEFIELDS. 日本加速器学会年会(Web). 2023. 20th
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. 自由電子レーザーの歯科分野応用への現状. 日本放射光学会年会・放射光科学合同シンポジウム(Web). 2022. 35th
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, et al. 自由電子レーザー照射による菌体の石灰化能の変化. 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. 127th

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Lectures and oral presentations (85)：

Current status of interaction experiments with plasma for realization of astrophysical fast radio burst on ground
(the 20th Annual Meeting of Particle Accelerator Society of Japan 2023)
Research towards attosecond x-ray pulse generation using free-electron laser oscillators: 2023
(the 20th Annual Meeting of Particle Accelerator Society of Japan 2023)
Development of vacuum protection system for a plasma interaction experiment
(the 20th Annual Meeting of Particle Accelerator Society of Japan 2023)
Assessment of a hand-made scintillator radiation monitor by an ion chamber toward a point dose evaluation in accelerator operations
(the 20th Annual Meeting of Particle Accelerator Society of Japan 2023)
Development of C-band RF electron gun for injecting electron beam into laser plasma wakefields
(the 20th Annual Meeting of Particle Accelerator Society of Japan 2023)

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Education (3)：

2001 - 2004 Nihon University Graduate School, Division of Science and Engineering Quantum Science and Technology
1999 - 2001 Nihon University Graduate School, Division of Science and Engineering Quantum Science and Technology
1995 - 1999 Nihon University Faculty of Science and Engineering Department of Physics

Work history (10)：

2020/04 - 現在 Nihon University Institute of Quantum Science Associate Professor
2023/04 - 2024/03 Japan Synchrotron Radiation Research Institute
2017/04 - 2020/03 Nihon University Institute of Quantum Science Assistant Professor
2012/04 - 2017/03 Nihon University Institute of Quantum Science Research Assistant
2011/07 - 2012/03 Accuthera Inc. R & D Division

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Committee career (3)：

2023/10 - 現在日本放射光学会日本放射光学会編集委員
2021/10 - 現在日本加速器学会行事委員会委員
2022/12 - 2023/11 日本加速器学会第20回年会組織委員会実行委員長

Awards (1)：

2023/06 - 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

Association Membership(s) (4)：

The Japan Society of Infrared Science and Technology , The Physical Society of Japan , The Japanese Society for Synchrotron Radiation Research , Particle Accelerator Society of Japan

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