Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Yuuji Kojima"'
Autor:
Yasunori Tanimoto, K. Endo, Ryota Takai, H. Matsushita, Eiji Kako, Kentaro Harada, Kenji Hosoyama, Kota Nakanishi, Seiji Asaoka, Shuichi Noguchi, Ken Watanabe, Feng Qiu, Yuuji Kojima, Enrico Cenni, Kazufumi Hara, Kaiichi Haga, Masao Kuriki, Yosuke Honda, Hiromitsu Nakajima, Teruya Honma, Yukinori Kobayashi, Shinichiro Michizono, Ryoichi Hajima, Kazuhiro Enami, Tatsuya Kume, Shigeki Fukuda, Hirotaka Nakai, K. Umemori, Masaru Sawamura, Kotaro Satoh, M. Tadano, Mitsuo Akemoto, Hidenori Sagehashi, Hiroshi Matsumura, Hiroshi Kawata, Takako Miura, Shinichi Sasaki, Toshio Shishido, Takaaki Furuya, Masato Egi, Tateru Takenaka, Hiroshi Sakai, Kenji Shinoe, Y. Kondou, Tohru Honda, Miho Shimada, Hiroaki Katagiri, Takashi Nogami, Akira Ueda, Takashi Uchiyama, Norio Nakamura, Tsukasa Miyajima, Dai Arakawa, Shinya Nagahashi, Shogo Sakanaka, Takashi Obina, Takeshi Takahashi, Olga Tanaka, Masahiro Yamamoto, Kazuyuki Nigorikawa, Nobuyuki Nishimori, Ryoji Nagai
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 877:197-219
Energy-recovery linacs (ERLs) are promising for advanced synchrotron light sources, high-power free electron lasers (FELs), high-brightness gamma-ray sources , and electron–ion colliders. To demonstrate the critical technology of ERL-based light so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1952effdd5de9bc5fae9a38c16bee59
https://doi.org/10.1016/j.nima.2017.08.051
https://doi.org/10.1016/j.nima.2017.08.051
Autor:
T. Kanekiyo, Kota Nakanishi, Hirotaka Nakai, Kazufumi Hara, Teruya Honma, Kenji Hosoyama, Yoshiyuki Morita, Yuuji Kojima
Publikováno v:
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 50:549-556
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56db0e09da041988171657ed8cb6ba73
https://doi.org/10.2221/jcsj.50.549
https://doi.org/10.2221/jcsj.50.549
Autor:
Yasuchika Yamamoto, Hirotaka Nakai, Yuuji Kojima, Akira Yamamoto, Shinichiro Michizono, Toshihiro Matsumoto, Eiji Kako, Eric Montesinos, Teruya Honma, Toshio Shishido, Charles Julie
Publikováno v:
Scopus-Elsevier
The high power test for STF -2 cryomodule with twelve cavities has completed successfully in 2015. It became clear the average accelerating gradient was 30.3 MV/m, eight cavities achi eved above 31.5 MV/m as the ILC specification, and three cavities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::015261a37a0a47fb1018074e583829b7
https://doi.org/10.22323/1.282.0066
https://doi.org/10.22323/1.282.0066
Autor:
null Jun Yoshida, null Kenji Hosoyama, null Hirotaka Nakai, null Kazufumi Hara, null Yuuji Kojima, null Kota Nakanishi, null Masato Noguchi, null Takashi Ichitani, null Satoshi Kaneda, null Shigemitsu Sakuma, null Kouichi Suzuki, null Takayuki Kanekiyo
Publikováno v:
2007 IEEE Particle Accelerator Conference (PAC).
Under the leadership of KEK (High Energy Accelerator Research Organization), the collaborating design and construction activity has been performed in KEK in order to develop the STF (Superconducting RF Test Facility) cryogenic system, together with s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ed4fea3c0e47f7f9857c927b291b6d6
https://doi.org/10.1109/pac.2007.4440357
https://doi.org/10.1109/pac.2007.4440357
Autor:
T. Tajima, S. C. Zhao, K. Asano, Yoshiyuki Morita, Keigo Hara, K. Akai, Takaaki Furuya, Tadayuki Takahashi, Kenji Hosoyama, Yuuji Kojima, S. Mitsunobu, Atsushi Kabe
Publikováno v:
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167).
A series of beam tests using TRISTAN Accumulation Ring (AR) was dedicated to verify the feasibility of RF system and other components planned for KEKB, the B Factory project at KEK. In this paper, we describe the results on higher order mode (HOM) ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::195859f5e81a933e4ce8505ff11f5d64
https://doi.org/10.1109/pac.1997.753118
https://doi.org/10.1109/pac.1997.753118
Autor:
H. Nakanishi, A. Kabe, Y. Ishi, Takaaki Furuya, K. Akai, Y. Kijima, K. Sennyu, S. Yoshimoto, S. C. Zhao, K. Hara, Tsuyoshi Tajima, K. Hosoyama, E. Ezura, T. Murai, Yoshiyuki Morita, S. Mitsunobu, K. Asano, H. Nakai, Tadayuki Takahashi, Yuuji Kojima
Publikováno v:
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167).
For the feasibility study of a superconducting damped cavity for a KEK B-factory, a prototype module was constructed and tested in the TRISTAN Accumulation Ring. This module accelerated the beam current of 500 mA with the cavity voltage of 1-2 MV, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01df54d9c030c173a6440e34c54f9766
https://doi.org/10.1109/pac.1997.753117
https://doi.org/10.1109/pac.1997.753117
Autor:
Kenji Hosoyama, Yoshiyuki Morita, Hirotaka Nakai, Tsuneo Fujita, T. Kanekiyo, Kazufumi Hara, Atsushi Kabe, Yutaka Sakamoto, Tohru Ogitsu, Yuuji Kojima
Publisher Summary A large scale helium refrigeration system was constructed and operated for about 7 years for superconducting RF accelerating cavities (SCC) in TRISTAN electron positron collider at National Laboratory for High Energy Physics (KEK).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf8e63b039673cb5b4f5b2a01209c99
https://doi.org/10.1016/b978-008042688-4/50043-0
https://doi.org/10.1016/b978-008042688-4/50043-0
Autor:
Kenji Hosoyama, N. Akasaka, Yasuchika Yamamoto, S. Mitsunobu, Yuuji Kojima, Sigeshi Ninomiya, Tsuyoshi Tajima, Yoshishige Yamazaki, Masato Yoshida, S. Isagawa, Masaaki Suetake, Kazunori Akai, Kazufumi Hara, H. Nakanishi, Masaaki Ono, Yoshiyuki Morita, Fujio Naito, Teruya Honma, Shin Ichi Yoshimoto, Takaaki Furuya, Yasunao Takeuchi, Tetsuo Abe, Kota Nakanishi, Hiroshi Sakai, Atsushi Kabe, Takeshi Takahashi, Michiru Nishiwaki, S. Takano, K. Yoshino, T. Kobayashi, Tatsuya Kageyama, Hirotaka Nakai, Kiyokazu Ebihara, E. Ezura, Hajime Mizuno, K. Marutsuka
Publikováno v:
Progress of Theoretical and Experimental Physics. 2013:3A006
KEK B-Factory (KEKB) was terminated in 2010 after achieving the world record luminosity of 2.11 × 1034 cm−2s−1. This paper describes the design features, performance, and operation results of the KEKB RF systems, which include a lot of original
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50cf71cfea2813245240547ec3317a5d
https://doi.org/10.1093/ptep/ptt020
https://doi.org/10.1093/ptep/ptt020
Autor:
K. Yoshino, Eiji Kako, Hiroshi Sakai, Hitoshi Fukuma, Kota Nakanishi, Takashi Sugimura, Noboru Yamamoto, Y. Sakamoto, Kazumi Egawa, S. Isagawa, Shigeki Kato, A. Shirakawa, Eiji Kikutani, H. Nakanishi, S. Takasaki, M. Arinaga, Kyo Shibata, Takuya Kamitani, Shigemi Inagaki, Akio Morita, Tetsuo Shidara, Kazunori Akai, Hiroyuki Honma, Yasunobu Ohsawa, T. Ieiri, Naoko Iida, Toshiyuki Ozaki, Toshiyuki Mitsuhashi, Kazuhito Ohmi, S. Mitsunobu, T. Kawamoto, Eiji Ezura, M. Sato, S. Kamada, Shoji Uno, Mitsuhiro Yoshida, Shinichiro Michizono, N. Tokuda, K. Mikawa, I. Komada, S. Takano, Masaaki Suetake, Toshiyasu Higo, Atsushi Enomoto, Demin Zhou, Katumi Nakao, Osamu Tajima, Ken-ichi Kanazawa, Tateru Takenaka, Haruyo Koiso, Masaki Tejima, Yasunao Takeuchi, Miho Shimada, Yoshiharu Yano, Kiyosumi Tsuchiya, Yuuji Kojima, Toshiyuki Oki, Kiyokazu Ebihara, Teruya Honma, Satoshi Ohsawa, Hiromi Hisamatsu, M. Ikeda, Kazuro Furukawa, Toshihiro Mimashi, Takako Miura, T. Kubo, Masakazu Yoshioka, Katsunobu Oide, K. Yokoyama, H. Nakayama, E. Kadokura, Yusuke Suetsugu, Ryuhei Sugahara, Tatsuro Nakamura, S. Yoshimoto, Hitoshi Ishii, K. Mori, Shuji Matsumoto, Mika Masuzawa, T. Sueno, Shigeki Fukuda, Mitsuo Akemoto, Sergey Kazakov, Yingzhi Wu, J. Haba, A. Akiyama, Masafumi Tawada, Hirotaka Nakai, Tsuyoshi Suwada, E. Perevedentsev, Mitsuo Kikuchi, Yuji Seimiya, Hitomi Ikeda, Norimasa Akasaka, K. Marutsuka, Yunhai Cai, Sadaharu Uehara, Kazufumi Hara, Makoto Tobiyama, Kenji Hosoyama, Shigenori Hiramatsu, Zhanguo Zong, Tatsuya Kageyama, Hiromitsu Nakajima, Yoshihiro Funakoshi, Michiru Nishiwaki, Tetsuo Abe, Frank Zimmermann, J.W. Flanagan, Masanori Satoh, Hiroaki Katagiri, Yukiyoshi Ohnishi, Kiyoshi Kitagawa, Takaaki Furuya, Yujiro Ogawa, Masato Yoshida, Atsushi Kabe, Toshihiro Matsumoto, Shin-ichi Kurokawa, Yasuchika Yamamoto, Y. Takeuchi, Yoshiyuki Morita, Kotaro Satoh, K. Kudo, Mitsuru Shirai, Norihito Ohuchi, Kazuhisa Kakihara, Masaaki Ono, Samo Stanic
Publikováno v:
Progress of Theoretical and Experimental Physics. 2013:3A001
The machine commissioning of KEKB started in December 1998 and its operation was terminated at the end of June 2010 to upgrade KEKB to SuperKEKB. In this paper, we summarize the history of KEKB and show the achievements made there.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d932af56b7a880f161c60eb325db6f
https://doi.org/10.1093/ptep/pts102
https://doi.org/10.1093/ptep/pts102
Autor:
Hirotaka Nakai, Akio Terashima, Yuuji Kojima, Takakazu Shintomi, Atsushi Kabe, Kazufumi Hara, Yoshiyuki Morita, Kenji Hosoyama
Publikováno v:
A Cryogenic Engineering Conference Publication ISBN: 9781461380221
Magnetic field measurements and field analyses of 1-m long superconducting dipole magnets fabricated at the National Laboratory for High Energy Physics (KEK) have been carried out using a harmonic coil with the bucking scheme.1 Conditions of the data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94cc3d4faf0c4a2a9d4c09930a2bfc01
https://doi.org/10.1007/978-1-4613-0373-2_50
https://doi.org/10.1007/978-1-4613-0373-2_50