R
Ryotaro Tanaka
Publications - 20
Citations - 1998
Ryotaro Tanaka is an academic researcher. The author has contributed to research in topics: Data acquisition & SACLA. The author has an hindex of 7, co-authored 20 publications receiving 1824 citations.
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Journal ArticleDOI
A compact X-ray free-electron laser emitting in the sub-ångström region
Tetsuya Ishikawa,Hideki Aoyagi,Takao Asaka,Yoshihiro Asano,Noriyoshi Azumi,T. Bizen,H. Ego,Kenji Fukami,Toru Fukui,Yukito Furukawa,Shunji Goto,Hirofumi Hanaki,Toru Hara,Teruaki Hasegawa,Takaki Hatsui,Atsushi Higashiya,T. Hirono,Naoyasu Hosoda,Miho Ishii,Takahiro Inagaki,Yuichi Inubushi,Toshiro Itoga,Yasumasa Joti,Masahiro Kago,Takashi Kameshima,Hiroaki Kimura,Yoichi Kirihara,Akio Kiyomichi,T. Kobayashi,Chikara Kondo,Togo Kudo,Hirokazu Maesaka,Xavier Maréchal,Takemasa Masuda,Shinichi Matsubara,Takahiro Matsumoto,Tomohiro Matsushita,Sakuo Matsui,Mitsuru Nagasono,Nobuteru Nariyama,Haruhiko Ohashi,Toru Ohata,Takashi Ohshima,Shun Ono,Yuji Otake,Choji Saji,Tatsuyuki Sakurai,Takahiro Sato,Kei Sawada,T. Seike,Katsutoshi Shirasawa,Takashi Sugimoto,Shinsuke Suzuki,Sunao Takahashi,Hideki Takebe,Kunikazu Takeshita,Kenji Tamasaku,Hitoshi Tanaka,Ryotaro Tanaka,Takashi Tanaka,Tadashi Togashi,Kazuaki Togawa,Atsushi Tokuhisa,Hiromitsu Tomizawa,Kensuke Tono,Shukui Wu,Makina Yabashi,Mitsuhiro Yamaga,Akihiro Yamashita,Kenichi Yanagida,Chao Zhang,Tsumoru Shintake,Hideo Kitamura,Noritaka Kumagai +73 more
TL;DR: In this paper, the SPring-8 Angstrom Compact Free-Electron Laser (CFEL) was used for sub-angstrom fundamental-wavelength lasing at the Tokyo National Museum.
Journal ArticleDOI
A compact free-electron laser for generating coherent radiation in the extreme ultraviolet region
Tsumoru Shintake,Hitoshi Tanaka,Toru Hara,Takashi Tanaka,Kazuaki Togawa,Makina Yabashi,Yuji Otake,Yoshihiro Asano,T. Bizen,Toru Fukui,Shunji Goto,Atsushi Higashiya,T. Hirono,Naoyasu Hosoda,Takahiro Inagaki,Shinobu Inoue,Miho Ishii,Yujong Kim,Hiroaki Kimura,Masanobu Kitamura,T. Kobayashi,Hirokazu Maesaka,Takemasa Masuda,Sakuo Matsui,Tomohiro Matsushita,Xavier Maréchal,Mitsuru Nagasono,Haruhiko Ohashi,Toru Ohata,Takashi Ohshima,K. Onoe,Katsutoshi Shirasawa,Tetsuya Takagi,Sunao Takahashi,Masao Takeuchi,Kenji Tamasaku,Ryotaro Tanaka,Yoshihito Tanaka,T. Tanikawa,Tadashi Togashi,Shukui Wu,Akihiro Yamashita,Kenichi Yanagida,Chao Zhang,Hideo Kitamura,Tetsuya Ishikawa +45 more
TL;DR: In this paper, a 55m-long compact self-amplified spontaneous emission (SEM) source with a low acceleration energy of 250 MeV was used to generate X-ray free-electron laser radiation with a 2-GeV machine.
Journal ArticleDOI
Stable operation of a self-amplified spontaneous-emission free-electron laser in the extremely ultraviolet region
Tsumoru Shintake,Hitoshi Tanaka,Toru Hara,Takashi Tanaka,Kazuaki Togawa,Makina Yabashi,Yuji Otake,Yoshihiro Asano,Toru Fukui,Teruaki Hasegawa,Atsushi Higashiya,Naoyasu Hosoda,Takahiro Inagaki,Shinobu Inoue,Yujong Kim,Masanobu Kitamura,Noritaka Kumagai,Hirokazu Maesaka,Sakuo Matsui,Mitsuru Nagasono,Takashi Ohshima,Tatsuyuki Sakurai,Kenji Tamasaku,Yoshihito Tanaka,T. Tanikawa,Tadashi Togashi,Shukui Wu,Hideo Kitamura,Tetsuya Ishikawa,Takao Asaka,T. Bizen,Shunji Goto,T. Hirono,Miho Ishii,Hiroaki Kimura,T. Kobayashi,Takemasa Masuda,Tomohiro Matsushita,Xavier Maréchal,Haruhiko Ohashi,Toru Ohata,Katsutoshi Shirasawa,Tetsuya Takagi,Sunao Takahashi,Masao Takeuchi,Ryotaro Tanaka,Akihiro Yamashita,Kenichi Yanagida,Chao Zhang +48 more
TL;DR: In this paper, the authors achieved stable operation of a free-electron laser (FEL) based on the self-amplified spontaneous emission (SASE) scheme at the SPring-8 Compact SASE Source (SCSS) test accelerator in the extremely ultraviolet region.
Journal ArticleDOI
Data acquisition system for X-ray free-electron laser experiments at SACLA
Yasumasa Joti,Takashi Kameshima,Mitsuhiro Yamaga,Takashi Sugimoto,Kensuke Okada,Toshinori Abe,Yukito Furukawa,Toru Ohata,Ryotaro Tanaka,Takaki Hatsui,Makina Yabashi +10 more
TL;DR: A data acquisition, control, and storage system for user experiments at the X-ray Free Electron Laser facility, SACLA, at the SPring-S site, which has been stably operating for the public users experiments since March 2012.
Journal ArticleDOI
Stable top-up operation at SPring-8
Hitoshi Tanaka,Masatoshi Adachi,Tsuyoshi Aoki,Takao Asaka,Alfred Q. R. Baron,Shin Daté,Kenji Fukami,Yukito Furukawa,Hirofumi Hanaki,Naoyasu Hosoda,Tetsuya Ishikawa,Hiroaki Kimura,Kazuo Kobayashi,T. Kobayashi,Shinji Kohara,Noritaka Kumagai,Mitsuhiro Masaki,Takemasa Masuda,Sakuo Matsui,Akihiko Mizuno,Takeshi Nakamura,Takeshi Nakatani,Takashi Noda,Toru Ohata,Haruo Ohkuma,Takashi Ohshima,Masaya Oishi,Sigeki Sasaki,Jun Schimizu,Masazumi Shoji,Kouichi Soutome,Motohiro Suzuki,Shinsuke Suzuki,Yoshio Suzuki,Shirou Takano,Masaru Takao,Takeo Takashima,Hideki Takebe,Akihisa Takeuchi,Kazuhiro Tamura,Ryotaro Tanaka,Yoshihito Tanaka,Tsutomu Taniuchi,Yukiko Taniuchi,Kouji Tsumaki,Akihiro Yamashita,Kenichi Yanagida,Y. Yoda,Hiroto Yonehara,Tetsuhiko Yorita,Masamichi Yoshioka,Masaki Takata +51 more
TL;DR: The implementation of top-up operation at SPring-8 is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purity of an isolated single bunch, and beam injection efficiency.