Search Results - "Maesaka, Hirokazu"

Spectral-brightness optimization of an X-ray free-electron laser by machine-learning-based tuning by Iwai, Eito, Inoue, Ichiro, Maesaka, Hirokazu, Inagaki, Takahiro, Yabashi, Makina, Hara, Toru, Tanaka, Hitoshi

“…A machine-learning-based beam optimizer has been implemented to maximize the spectral brightness of the X-ray free-electron laser (XFEL) pulses of SACLA. A new…”
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A compact free-electron laser for generating coherent radiation in the extreme ultraviolet region by Yabashi, Makina, Kim, Yujong, Kitamura, Masanobu, Onoe, Kazuyuki, Takagi, Tetsuya, Shintake, Tsumoru, Tanaka, Hitoshi, Hara, Toru, Tanaka, Takashi, Togawa, Kazuaki, Otake, Yuji, Asano, Yoshihiro, Bizen, Teruhiko, Fukui, Toru, Goto, Shunji, Higashiya, Atsushi, Hirono, Toko, Hosoda, Naoyasu, Inagaki, Takahiro, Inoue, Shinobu, Ishii, Miho, Kimura, Hiroaki, Kobayashi, Toshiaki, Maesaka, Hirokazu, Masuda, Takemasa, Matsui, Sakuo, Matsushita, Tomohiro, Maréchal, Xavier, Nagasono, Mitsuru, Ohashi, Haruhiko, Ohata, Toru, Ohshima, Takashi, Shirasawa, Katsutoshi, Takahashi, Sunao, Takeuchi, Masao, Tamasaku, Kenji, Tanaka, Ryotaro, Tanaka, Yoshihito, Tanikawa, Takanori, Togashi, Tadashi, Wu, Shukui, Yamashita, Akihiro, Yanagida, Kenichi, Zhang, Chao, Kitamura, Hideo, Ishikawa, Tetsuya

“…Single-pass free-electron lasers based on self-amplified spontaneous emission 1 , 2 , 3 , 4 are enabling the generation of laser light at ever shorter…”
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Green upgrading of SPring-8 to produce stable, ultrabrilliant hard X-ray beams by Tanaka, Hitoshi, Watanabe, Takahiro, Abe, Toshinori, Azumi, Noriyoshi, Aoki, Tsuyoshi, Dewa, Hideki, Fujita, Takahiro, Fukami, Kenji, Fukui, Toru, Hara, Toru, Hiraiwa, Toshihiko, Imamura, Kei, Inagaki, Takahiro, Iwai, Eito, Kagamihata, Akihiro, Kawase, Morihiro, Kida, Yuichiro, Kondo, Chikara, Maesaka, Hirokazu, Magome, Tamotsu, Masaki, Mitsuhiro, Masuda, Takemasa, Matsubara, Shinichi, Matsui, Sakuo, Ohshima, Takashi, Oishi, Masaya, Seike, Takamitsu, Shoji, Masazumi, Soutome, Kouichi, Sugimoto, Takashi, Suzuki, Shinji, Tajima, Minori, Takano, Shiro, Tamura, Kazuhiro, Tanaka, Takashi, Taniuchi, Tsutomu, Taniuchi, Yukiko, Togawa, Kazuaki, Tomai, Takato, Ueda, Yosuke, Yamaguchi, Hiroshi, Yabashi, Makina, Ishikawa, Tetsuya

“…SPring-8-II is a major upgrade project of SPring-8 that was inaugurated in October 1997 as a third-generation synchrotron radiation light source. This upgrade…”
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Error compensation of IQ modulator using two-dimensional DFT by Ohshima, Takashi, Maesaka, Hirokazu, Matsubara, Shinichi, Otake, Yuji

“…It is important to precisely set and keep the phase and amplitude of an rf signal in the accelerating cavity of modern accelerators, such as an X-ray Free…”
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Brightness analysis of an electron beam with a complex profile by Maesaka, Hirokazu, Hara, Toru, Togawa, Kazuaki, Inagaki, Takahiro, Tanaka, Hitoshi

“…We propose a novel analysis method to obtain the core bright part of an electron beam with a complex phase-space profile. This method is beneficial to evaluate…”
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Low-emittance beam injection for a synchrotron radiation source using an X-ray free-electron laser linear accelerator by Hara, Toru, Aoki, Tsuyoshi, Dewa, Hideki, Fujita, Takahiro, Fukami, Kenji, Fukui, Toru, Hiraiwa, Toshihiko, Hosoda, Naoyasu, Inagaki, Takahiro, Itoga, Toshiro, Iwai, Eito, Kiyomichi, Akio, Kondo, Chikara, Maesaka, Hirokazu, Masaki, Mitsuhiro, Matsubara, Shinichi, Morimoto, Osamu, Ohshima, Takashi, Oishi, Masaya, Shoji, Masazumi, Soutome, Kouichi, Tajiri, Yasuyuki, Takano, Shiro, Tamura, Kazuhiro, Taniuchi, Yukiko, Togawa, Kazuaki, Watanabe, Takahiro, Yabuuchi, Toshinori, Tanaka, Hitoshi

“…The full-energy beam injection system from SACLA to the SPring-8 storage ring has been developed. Low-emittance beam injection is required for the future…”
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Low-emittance thermionic-gun-based injector for a compact free-electron laser by Asaka, Takao, Ego, Hiroyasu, Hanaki, Hirohumi, Hara, Toru, Hasegawa, Taichi, Hasegawa, Teruaki, Inagaki, Takahiro, Kobayashi, Toshiaki, Kondo, Chikara, Maesaka, Hirokazu, Matsubara, Shinichi, Matsui, Sakuo, Ohshima, Takashi, Otake, Yuji, Sakurai, Tatsuyuki, Suzuki, Shinsuke, Tajiri, Yasuyuki, Tanaka, Shinichiro, Togawa, Kazuaki, Tanaka, Hitoshi

“…A low-emittance thermionic-gun-based injector was developed for the x-ray free-electron laser (XFEL) facility known as the SPring-8 angstrom compact…”
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Timing and low-level rf system for an x-ray laser by Otake, Yuji, Maesaka, Hirokazu, Matsubara, Shinich, Hosoda, Naoyasu, Ohshima, Takashi

“…An x-ray free-electron laser (XFEL), SACLA, designed to open up new science, was constructed for generating coherent x rays with a peak power of more than 10…”
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Time-interleaved multienergy acceleration for an x-ray free-electron laser facility by Hara, Toru, Tamasaku, Kenji, Asaka, Takao, Inagaki, Takahiro, Inubushi, Yuichi, Katayama, Tetsuo, Kondo, Chikara, Maesaka, Hirokazu, Matsubara, Shinichi, Ohshima, Takashi, Otake, Yuji, Sakurai, Tatsuyuki, Sato, Takahiro, Tanaka, Hitoshi, Togashi, Tadashi, Togawa, Kazuaki, Tono, Kensuke, Yabashi, Makina, Ishikawa, Tetsuya

“…To meet the demand from the growing number of user experiments, multi-beam-line operation with a wide spectral range is seriously considered in x-ray…”
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High peak current operation of x-ray free-electron laser multiple beam lines by suppressing coherent synchrotron radiation effects by Hara, Toru, Kondo, Chikara, Inagaki, Takahiro, Togawa, Kazuaki, Fukami, Kenji, Nakazawa, Shingo, Hasegawa, Taichi, Morimoto, Osamu, Yoshioka, Masamichi, Maesaka, Hirokazu, Otake, Yuji, Tanaka, Hitoshi

“…The parallel operation of multiple beam lines is an important means to expand the opportunity of user experiments at x-ray free-electron laser (XFEL)…”
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Adaptive feedforward control of closed orbit distortion caused by fast helicity‐switching undulators by Masaki, Mitsuhiro, Maesaka, Hirokazu, Soutome, Kouichi, Takano, Shiro, Watanabe, Takahiro, Kubota, Kouji, Fujita, Takahiro, Dewa, Hideki, Fukui, Toru, Sugimoto, Takashi, Takeuchi, Masao, Tanaka, Hitoshi

“…A new correction algorithm for closed orbit distortion based on an adaptive feedforward control (AFC) has been developed. At SPring‐8, two helicity‐switching…”
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LLRF and timing system for the SCSS test accelerator at SPring-8 by Otake, Yuji, Ohshima, Takashi, Hosoda, Naoyasu, Maesaka, Hirokazu, Fukui, Toru, Kitamura, Masanobu, Shintake, Tsumoru

“…The 250MeV SCSS test accelerator as an extreme-ultra violet (EUV) laser source has been built at SPring-8. The accelerator comprises a 500kV thermionic gun, a…”
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Stable operation of a self-amplified spontaneous-emission free-electron laser in the extremely ultraviolet region by Shintake, Tsumoru, Tanaka, Hitoshi, Hara, Toru, Tanaka, Takashi, Togawa, Kazuaki, Yabashi, Makina, Otake, Yuji, Asano, Yoshihiro, Fukui, Toru, Hasegawa, Teruaki, Higashiya, Atsushi, Hosoda, Naoyasu, Inagaki, Takahiro, Inoue, Shinobu, Kim, Yujong, Kitamura, Masanobu, Kumagai, Noritaka, Maesaka, Hirokazu, Matsui, Sakuo, Nagasono, Mitsuru, Ohshima, Takashi, Sakurai, Tatsuyuki, Tamasaku, Kenji, Tanaka, Yoshihito, Tanikawa, Takanori, Togashi, Tadashi, Wu, Shukui, Kitamura, Hideo, Ishikawa, Tetsuya, Asaka, Takao, Bizen, Teruhiko, Goto, Shunji, Hirono, Toko, Ishii, Miho, Kimura, Hiroaki, Kobayashi, Toshiaki, Masuda, Takemasa, Matsushita, Tomohiro, Maréchal, Xavier, Ohashi, Haruhiko, Ohata, Toru, Shirasawa, Katsutoshi, Takagi, Tetsuya, Takahashi, Sunao, Takeuchi, Masao, Tanaka, Ryotaro, Yamashita, Akihiro, Yanagida, Kenichi, Zhang, Chao

“…We 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…”
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A compact X-ray free-electron laser emitting in the sub-?ngstrom region by Ishikawa, Tetsuya, Aoyagi, Hideki, Asaka, Takao, Asano, Yoshihiro, Azumi, Noriyoshi, Bizen, Teruhiko, Ego, Hiroyasu, Fukami, Kenji, Fukui, Toru, Furukawa, Yukito, Goto, Shunji, Hanaki, Hirofumi, Hara, Toru, Hasegawa, Teruaki, Hatsui, Takaki, Higashiya, Atsushi, Hirono, Toko, Hosoda, Naoyasu, Ishii, Miho, Inagaki, Takahiro, Inubushi, Yuichi, Itoga, Toshiro, Joti, Yasumasa, Kago, Masahiro, Kameshima, Takashi, Kimura, Hiroaki, Kirihara, Yoichi, Kiyomichi, Akio, Kobayashi, Toshiaki, Kondo, Chikara, Kudo, Togo, Maesaka, Hirokazu, Maréchal, Xavier M, Masuda, Takemasa, Matsubara, Shinichi, Matsumoto, Takahiro, Matsushita, Tomohiro, Matsui, Sakuo, Nagasono, Mitsuru, Nariyama, Nobuteru, Ohashi, Haruhiko, Ohata, Toru, Ohshima, Takashi, Ono, Shun, Otake, Yuji, Saji, Choji, Sakurai, Tatsuyuki, Sato, Takahiro, Sawada, Kei, Seike, Takamitsu, Shirasawa, Katsutoshi, Sugimoto, Takashi, Suzuki, Shinsuke, Takahashi, Sunao, Takebe, Hideki, Takeshita, Kunikazu, Tamasaku, Kenji, Tanaka, Hitoshi, Tanaka, Ryotaro, Tanaka, Takashi, Togashi, Tadashi, Togawa, Kazuaki, Tokuhisa, Atsushi, Tomizawa, Hiromitsu, Tono, Kensuke, Wu, Shukui, Yabashi, Makina, Yamaga, Mitsuhiro, Yamashita, Akihiro, Yanagida, Kenichi, Zhang, Chao, Shintake, Tsumoru, Kitamura, Hideo, Kumagai, Noritaka

“…The free-electron laser, first proposed by Madey in 1971, has significantly reduced laser wavelengths to the vacuum ultraviolet and soft X-ray regions…”
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Commissioning of a compact multibend achromat lattice: A new 3 GeV synchrotron radiation facility by Obara, Shuhei, Ueshima, Kota, Asaka, Takao, Hosaka, Yuji, Kan, Koichi, Nishimori, Nobuyuki, Aoki, Toshitaka, Asano, Hiroyuki, Haga, Koichi, Iba, Yuto, Ihara, Akira, Ito, Katsumasa, Iwashita, Taiki, Kadowaki, Masaya, Kanahama, Rento, Kobayashi, Hajime, Kobayashi, Hideki, Nishihara, Hideo, Nishikawa, Masaaki, Oikawa, Haruhiko, Saida, Ryota, Sakuraba, Keisuke, Sugimoto, Kento, Suzuki, Masahiro, Takahashi, Kouki, Takahashi, Shunya, Tanaka, Tatsuki, Tsuchiyama, Tsubasa, Yoshioka, Risa, Aoki, Tsuyoshi, Dewa, Hideki, Fujita, Takahiro, Kawase, Morihiro, Kiyomich, Akio, Hamano, Takashi, Masaki, Mitsuhiro, Masuda, Takemasa, Matsubara, Shinichi, Okada, Kensuke, Saji, Choji, Taniuchi, Tsutomu, Taniuchi, Yukiko, Ueda, Yosuke, Yamaguchi, Hiroshi, Yanagida, Kenichi, Fukami, Kenji, Hosoda, Naoyasu, Ishii, Miho, Itoga, Toshiro, Iwai, Eito, Magome, Tamotsu, Oishi, Masaya, Ohshima, Takashi, Kondo, Chikara, Sakurai, Tatsuyuki, Shoji, Masazumi, Sugimoto, Takashi, Takano, Shiro, Tamura, Kazuhiro, Watanabe, Takahiro, Tomai, Takato, Azumi, Noriyoshi, Inagaki, Takahiro, Maesaka, Hirokazu, Takahashi, Sunao, Tanaka, Takashi, Inoue, Shinobu, Kumazawa, Hirosuke, Moriya, Kazuki, Sakai, Kohei, Seno, Toshio, Sumitomo, Hiroshi, Takesako, Ryoichi, Tanaka, Shinichiro, Yamamoto, Ryo, Yokomachi, Kazutoshi, Yoshioka, Masamichi, Hara, Toru, Matsui, Sakuo, Hiraiwa, Toshihiko, Tanaka, Hitoshi, Ego, Hiroyasu

“…NanoTerasu, a new 3 GeV synchrotron light source in Japan, began user operation in April 2024. It provides high-brilliance soft to tender X-rays and covers a…”
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