Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Hideki Dewa"'
Autor:
Toru Hara, Tsuyoshi Aoki, Hideki Dewa, Takahiro Fujita, Kenji Fukami, Toru Fukui, Toshihiko Hiraiwa, Naoyasu Hosoda, Takahiro Inagaki, Toshiro Itoga, Eito Iwai, Akio Kiyomichi, Chikara Kondo, Hirokazu Maesaka, Mitsuhiro Masaki, Shinichi Matsubara, Osamu Morimoto, Takashi Ohshima, Masaya Oishi, Masazumi Shoji, Kouichi Soutome, Yasuyuki Tajiri, Shiro Takano, Kazuhiro Tamura, Yukiko Taniuchi, Kazuaki Togawa, Takahiro Watanabe, Toshinori Yabuuchi, Hitoshi Tanaka
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 11, p 110702 (2021)
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 upgrade of SPring-8 due to its small injection beam aperture. The electron beam injection from a
Externí odkaz:
https://doaj.org/article/47850d43495a42e389eb5521263f4d77
Adaptive feedforward control of closed orbit distortion caused by fast helicity-switching undulators
Autor:
Toru Fukui, Hideki Dewa, Takashi Sugimoto, Hitoshi Tanaka, M. Masaki, Shiro Takano, Hirokazu Maesaka, Takahiro Fujita, Kouichi Soutome, Takahiro Watanabe, Kouji Kubota, Masao Takeuchi
Publikováno v:
Journal of Synchrotron Radiation
We developed a new correction algorithm for closed orbit distortion (COD) based on adaptive feedforward control (AFC). The AFC system effectively works for the suppression of the fast COD due to known error sources with repetitive patterns such as he
Autor:
Eito Iwai, Takashi Ohshima, Kazuaki Togawa, Akio Kiyomichi, Shinichi Matsubara, Tsuyoshi Aoki, Masaya Oishi, Naoyasu Hosoda, Hitoshi Tanaka, Toru Fukui, Toru Hara, Toshiro Itoga, Masazumi Shoji, Chikara Kondo, Yukiko Taniuchi, Takahiro Inagaki, Toshihiko Hiraiwa, Takahiro Fujita, Shiro Takano, Hirokazu Maesaka, Osamu Morimoto, Hideki Dewa, Takahiro Watanabe, Kouichi Soutome, Kenji Fukami, M. Masaki, Yasuyuki Tajiri, Toshinori Yabuuchi, Kazuhiro Tamura
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 11, p 110702 (2021)
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 upgrade of SPring-8 due to its small injection beam aperture. The electron beam injection from a
Autor:
T. Kobayashi, Kenichi Yanagida, F. Matsui, H. Hanaki, Hideki Dewa, Takao Asaka, Akihiko Mizuno, Shinsuke Suzuki, Tsutomu Taniuchi, Hiromitsu Tomizawa
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 557:117-123
We have been developing a stable and highly qualified ultraviolet (UV) laser pulse as a light source of an RF gun for an injector candidate of future light sources. Our gun cavity is a single-cell pillbox, and the copper inner wall is used as a photo
Autor:
Kenichi Yanagida, Tsutomu Taniuchi, Hideki Dewa, Hirofumi Hanaki, Hiromitsu Tomizawa, Shinsuke Suzuki, Takao Asaka, Mitsuru Uesaka, Akihiko Mizuno, T. Kobayashi, J. Sasabe
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 528:382-386
This report describes an S-band photoinjector with replaceable Cs2Te photocathodes. The photoinjector is equipped with a cathode-module, which is composed of four cartridge-type electric tubes with Cs2Te photocathodes. The photocathodes can be insert
Autor:
Kenichi Yanagida, T. Kobayashi, Shinsuke Suzuki, Akihiko Mizuno, Tsutomu Taniuchi, Hiromitsu Tomizawa, H. Hanaki, Takao Asaka, Mitsuru Uesaka, Hideki Dewa
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 528:387-391
To analyze the beam characteristics of an RF gun system, we developed a true three-dimensional beam tracking code. All forces imposed on each macrocharged particle are included in this code. Asymmetrical figures of beams and RF fields can be calculat
Autor:
Masaki Kando, L. N. Tsintsadze, James K. Koga, Hideyuki Kotaki, Toshiki Tajima, Kazuhisa Nakajima, S. V. Bulanov, N. Naumova, Hideki Dewa
Publikováno v:
Scopus-Elsevier
An explanation is given for the fixed blueshift observed of an intense short pulse laser propagating in a gas chamber filled with helium. The observed shift is found to be independent of the laser power and gas pressure above some critical power. The
Autor:
Koji Yoshii, Fumio Sakai, Shuji Kondo, Toru Ueda, Masaki Kando, Hideki Harano, Kenichi Kinoshita, Hidyuki Kotaki, Mitsuru Uesaka, Hideki Dewa, Takahiro Watanabe, Kazuhisa Nakajima
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 455:90-98
Generation and application of femtosecond X-ray pulses using the linac-laser synchronization system at Nuclear Engineering Research Laboratory, University of Tokyo, were performed. The time resolution of the synchronization between 240 fs (FWHM) 17 M
Autor:
Tomonao Hosokai, S. Kondo, Masaki Kando, Hideyuki Kotaki, Kazuhisa Nakajima, Hideki Dewa, Kazuhiko Horioka, Noboru Hasegawa
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 455:155-160
We have studied optical guiding of high-intensity laser pulses using fast Z-pinch for channel guided laser wakefield acceleration (LWFA). A fast Z-pinch discharge can produce a long stable plasma channel which has a concave electron density profile i
Autor:
Kenichi Kinoshita, Toru Ueda, Koji Yoshii, Masaki Kando, Mitsuru Uesaka, S. Kondo, Kazuhisa Nakajima, T. Watanabe, Hideki Dewa, Hideyuki Kotaki
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 455:166-171
Short pulsed X-rays have been experimentally generated by 90° Thomson scattering of 2 TW, 90 fs laser pulses by 17 MeV electron beams. A few 100 fs X-ray pulses have been generated via backward Thomson scattering from a few 100 fs electron bunches m