16 Papers
27 Citations
Y. Nakai is an academic researcher from Japan Atomic Energy Research Institute. The author has contributed to research in topics: Laser & Proton. The author has an hindex of 9, co-authored 15 publications.
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Papers
Focusing and spectral enhancement of a repetition-rated, laser-driven, divergent multi-MeV proton beam using permanent quadrupole magnets
Mamiko Nishiuchi,Izuru Daito,M. Ikegami,Hiroyuki Daido,Michiyasu Mori,S. Orimo,Koichi Ogura,Akito Sagisaka,Akifumi Yogo,Alexander S. Pirozhkov,H. Sugiyama,Hiromitsu Kiriyama,Hiroyuki Okada,Shuhei Kanazawa,Shuji Kondo,Takuya Shimomura,Manabu Tanoue,Y. Nakai,H. Sasao,D. Wakai,Hironao Sakaki,P. R. Bolton,Il Woo Choi,Jae Hee Sung,Jae Koo Lee,Y. Oishi,Takashi Fujii,K. Nemoto,H. Souda,Akira Noda,Yasushi Iseki,Takeshi Yoshiyuki +31 more
TL;DR: In this paper, a pair of conventional permanent magnet quadrupoles were used to focus a 2.4 MeV laser-driven proton beam at a 1 Hz repetition rate.
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Electron Optical Injection with Head-On and Countercrossing Colliding Laser Pulses
Hideyuki Kotaki,Izuru Daito,Masaki Kando,Yukio Hayashi,K. Kawase,Takashi Kameshima,Yuji Fukuda,T. Homma,Jinglong Ma,Liming Chen,T. Zh. Esirkepov,Alexander S. Pirozhkov,James K. Koga,A. Y. Faenov,T. A. Pikuz,Hiromitsu Kiriyama,Hajime Okada,Takuya Shimomura,Y. Nakai,Manabu Tanoue,H. Sasao,D. Wakai,H. Matsuura,S. Kondo,S. Kanazawa,Akira Sugiyama,Hiroyuki Daido,Sergei V. Bulanov +27 more
TL;DR: A high stability electron bunch is generated by laser wakefield acceleration with the help of a colliding laser pulse, which has high stability and high reproducibility compared with single pulse electron generation.
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Measured and simulated transport of 1.9 MeV laser-accelerated proton bunches through an integrated test beam line at 1 Hz
Mamiko Nishiuchi,Hironao Sakaki,Toshihiko Hori,P. R. Bolton,Koichi Ogura,Akito Sagisaka,Akifumi Yogo,Michiyasu Mori,S. Orimo,Alexander S. Pirozhkov,Izuru Daito,Hiromitsu Kiriyama,Hiroyuki Okada,S. Kanazawa,Shuji Kondo,Takuya Shimomura,Manabu Tanoue,Y. Nakai,H. Sasao,D. Wakai,Hiroyuki Daido,Kiminori Kondo,H. Souda,Hiromu Tongu,Akira Noda,Yasushi Iseki,Teruyasu Nagafuchi,Maeda Kazunao,K. Hanawa,Takeshi Yoshiyuki,T. Shirai +30 more
TL;DR: In this paper, a 1.9 MeV beam line composed of permanent quadrupole magnets (PMQs), a radio frequency (rf) phase rotation cavity, and a tunable monochromator is developed to evaluate and to test the simulation of laser-accelerated proton beam transport through an integrated system for the first time.
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Simultaneous Proton and X-ray Imaging with Femtosecond Intense Laser Driven Plasma Source
Satoshi Orimo,Mamiko Nishiuchi,Hiroyuki Daido,Akifumi Yogo,Koichi Ogura,Akito Sagisaka,Z. Li,Alexander S. Pirozhkov,Michiaki Mori,Hiromitsu Kiriyama,Shuhei Kanazawa,S. Kondo,Yoichi Yamamoto,Takuya Shimomura,Manabu Tanoue,Y. Nakai,Atsushi Akutsu,Shu Nakamura,Toshiyuki Shirai,Yoshihisa Iwashita,Akira Noda,Yuji Oishi,Koshichi Nemoto,Il Woo Choi,Tae Jun Yu,Jae Hee Sung,Tae Moon Jeong,Hyung Taek Kim,Kyung-Ham Hong,Young-Chul Noh,Do-Kyeong Ko,Jongmin Lee +31 more
TL;DR: In this paper, a laser-driven proton beam with a maximum energy of a few MeV is stably obtained using an ultra-short and high-intensity Ti:sapphire laser.
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Radial focusing and energy compression of a laser-produced proton beam by a synchronous rf field
Masahiro Ikegami,Shu Nakamura,Yoshihisa Iwashita,Toshiyuki Shirai,Hikaru Souda,Y. Tajima,Mikio Tanabe,Hiromu Tongu,Hiroyuki Itoh,Hiroki Shintaku,Atsushi Yamazaki,Hiroyuki Daido,Akifumi Yogo,Satoshi Orimo,Michiaki Mori,Mamiko Nishiuchi,Koichi Ogura,Akito Sagisaka,Alexander S. Pirozhkov,Hiromitsu Kiriyama,Shyuhei Kanazawa,Shuji Kondo,Yoichi Yamamoto,Takuya Shimomura,Manabu Tanoue,Y. Nakai,Atsushi Akutsu,Sergei V. Bulanov,Toyoaki Kimura,Yuji Oishi,Koshichi Nemoto,Toshiki Tajima,Akira Noda +32 more
TL;DR: In this paper, the authors studied the dynamics of a MeV laser-produced proton beam affected by a radio frequency (RF) electric field and proposed to eliminate the continuous energy component by utilizing a focal length difference between the continuous spectral protons and the protons included in the spectral peak.
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