Design and actual performance of J-PARC 3 GeV rapid cycling synchrotron for high-intensity operation
Kazami Yamamoto, Michikazu Kinsho, N. Hayashi, Pranab Saha, Fumihiko Tamura, Masanobu Yamamoto, N. Tani, T. Takayanagi, J. Kamiya, Yoshihiro Shobuda, Masahiro Yoshimoto, Hiroyuki Harada, Hiroki Takahashi, Yasuhiro Watanabe, Kota Okabe, Masahiro Nomura, Taihei Shimada, Takamitsu Nakanoya, Ayato Ono, Katsuhiro Moriya, Yoshio Yamazaki, K. Suganuma, Kosuke Fujirai, N. Kikuzawa, Shin-ichiro Meigo, Motoki Ooi, Shuichiro Hatakeyama, T. Togashi, Kaoru Wada, H. Hotchi, Masahito Yoshii, Chihiro Ohmori, T. Toyama, Kenichirou Satou, Y. Irie, T. Ueno, K. Horino, Toru Yanagibashi, Riuji Saeki, Atsushi Satô, Osamu Takeda, M. Kawase, T. Suzuki, Kazuhiko Watanabe, Tatsuya Ishiyama, Shinpei Fukuta, Yuki Sawabe, Yūichi Itō, Yuko Kato, Kazuo Hasegawa, Hiromitsu Suzuki, F. Noda
Abstract
In the Japan Proton Accelerator Research Complex, the purpose of the 3 GeV rapid cycling synchrotron (RCS) is to accelerate a 1 MW, high-intensity proton beam. To achieve beam operation at a repetition rate of 25 Hz at high intensities, the RCS was elaborately designed. After starting the RCS operation, we carefully verified the validity of its design and made certain improvements to establish a reliable operation at higher power as possible. Consequently, we demonstrated beam operation at a high power, namely, 1 MW. We then summarized the design, actual performance, and improvements of the RCS to achieve a 1 MW beam.