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Kabumoto, Hiroshi; Matsuda, Makoto; Nakamura, Masahiko; Ishizaki, Nobuhiro; Kutsukake, Kenichi; Otokawa, Yoshinori; Asozu, Takuhiro; Matsui, Yutaka; Nakagawa, Sohei; Abe, Shinichi
Proceedings of 19th Annual Meeting of Particle Accelerator Society of Japan (Internet), p.1109 - 1113, 2023/01
no abstracts in English
Nii, Keisuke*; Ida, Yoshiaki*; Ueda, Hideki*; Yamaguchi, Takanori*; Kabumoto, Hiroshi; Kamiya, Junichiro; Kondo, Yasuhiro; Tamura, Jun; Harada, Hiroyuki; Matsui, Yutaka; et al.
Proceedings of 19th Annual Meeting of Particle Accelerator Society of Japan (Internet), p.601 - 604, 2023/01
no abstracts in English
Fuwa, Yasuhiro; Iwashita, Yoshihisa*; Kuriyama, Yasutoshi*; Tongu, Hiromu*; Hayano, Hitoshi*; Geng, R. L.*
Proceedings of 20th International Conference on RF Superconductivity (SRF 2021) (Internet), p.323 - 325, 2022/05
In order to evaluate the performance of a superconducting cavity, we are developing a mapping system to measure the distribution of cavity temperature, field emission X-rays, and trapped magnetic flux with high positional resolution. In order to construct a system with high positional resolution, a large number of sensors are required. However, as the number of sensors increases, so does the amount of wiring, which increases the complexity of the wiring in the cryogenic apparatus, and also increases the heat transfer through the wiring, which disturb efficient operation of cavity tests. We are developing an efficient mapping system with a multiplexer that scans the readout signal on the same circuit as the sensor in the cryogenic dewar where the cavity test is conducted. In this presentation, we report the outline and test results of the mapping system under development
Sawamura, Masaru; Nagai, Ryoji; Hajima, Ryoichi; Kikuzawa, Nobuhiro; Iijima, Hokuto; Nishitani, Tomohiro; Minehara, Eisuke
Proceedings of 2nd Annual Meeting of Particle Accelerator Society of Japan and 30th Linear Accelerator Meeting in Japan, p.448 - 450, 2005/07
no abstracts in English
Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro; Nishimori, Nobuyuki; Hajima, Ryoichi; Minehara, Eisuke
Proceedings of 1st Annual Meeting of Particle Accelerator Society of Japan and 29th Linear Accelerator Meeting in Japan, p.305 - 307, 2004/08
no abstracts in English
Sawamura, Masaru; Hajima, Ryoichi; Kikuzawa, Nobuhiro; Minehara, Eisuke; Nagai, Ryoji; Nishimori, Nobuyuki
Proceedings of 9th European Particle Accelerator Conference (EPAC 2004) (CD-ROM), p.1723 - 1725, 2004/07
After the success of energy recovery linac (ERL) for the superconducting free-electron laser (FEL) in the Japan Atomic Energy Research Institute (JAERI), the JAERI ERL-FEL has been upgrading for high-power and long-pulse operation. The new RF sources of CW mode for higher power for non-energy-recovery parts have been installed and tested for long-pulse operation. The properties of the superconducting linac required for the long-pulse operation were measured such as pressure in the cryomodule, vibration of frequency and piezo tuner response. The RF control systems have been also upgraded to reduce the fluctuation to less than 0.1% for amplitude and 0.1 deg for phase.
Sawamura, Masaru; Hajima, Ryoichi; Kikuzawa, Nobuhiro; Minehara, Eisuke; Nagai, Ryoji; Nishimori, Nobuyuki
Proceedings of 2003 Particle Accelerator Conference (PAC 2003) (CD-ROM), p.3449 - 3451, 2003/00
no abstracts in English
Saito, Shigeru; Ouchi, Nobuo; Ishiyama, Shintaro; Tsuchiya, Yoshinori*; Nakajima, Hideo; Fukaya, Kiyoshi*
JAERI-Tech 2002-048, 68 Pages, 2002/05
JAERI-Tech-2002-048.pdf:7.86MB
no abstracts in English
Kikuchi, Kenji; Sasa, Toshinobu; Ishikura, Shuichi*; Mukugi, Ken*; Kai, Tetsuya; Ouchi, Nobuo; Ioka, Ikuo
Journal of Nuclear Materials, 296(1-3), p.34 - 42, 2001/07
Times Cited Count：18 Percentile：76.49(Materials Science, Multidisciplinary)no abstracts in English
Honda, Yoichiro*; Hasegawa, Kazuo; Ouchi, Nobuo; Kusano, Joichi; Mizumoto, Motoharu
Proc. of 1st Asian Particle Accelerator Conf. (APAC98), p.74 - 76, 1998/11
no abstracts in English
Chishiro, Etsuji*; Honda, Yoichiro*; Ouchi, Nobuo; Touchi, Y.*; Hasegawa, Kazuo; Kusano, Joichi; Mizumoto, Motoharu
Proc. of XIX Int. Linac Conf. (LINAC98), 2, p.923 - 925, 1998/00
no abstracts in English
Kikuzawa, Nobuhiro; Nagai, Ryoji; Sawamura, Masaru; Nishimori, Nobuyuki; Minehara, Eisuke
Proc. of 22nd Linear Accelerator Meeting in Japan, p.194 - 195, 1997/00
no abstracts in English
Sawamura, Masaru; Kikuzawa, Nobuhiro; Nagai, Ryoji; Nishimori, Nobuyuki; Sugimoto, Masayoshi; Minehara, Eisuke
Proc. of 22nd Linear Accelerator Meeting in Japan, p.170 - 171, 1997/00
no abstracts in English
Ouchi, Nobuo; Kusano, Joichi; Akaoka, Nobuo*; Takeuchi, Suehiro; B.Fechner*; Hasegawa, Kazuo; Mizumoto, Motoharu; Inoue, Hitoshi*; *; Noguchi, Shuichi*; et al.
Proc. of 8th Workshop on RF Superconductivity, 1, p.22 - 26, 1997/00
no abstracts in English
Ouchi, Nobuo; Kusano, Joichi; Akaoka, Nobuo*; Takeuchi, Suehiro; B.Fechner*; Hasegawa, Kazuo; Mizumoto, Motoharu; Inoue, Hitoshi*; *; Noguchi, Shuichi*; et al.
Proc. of 8th Workshop on RF Superconductivity, 1, p.12 - 21, 1997/00
no abstracts in English
Kasugai, Atsushi; Bazin, N.*; Cara, P.*; Chel, S.*; Gex, D.*; Heidinger, R.*; Yoshida, Kiyoshi; Ihara, Akira; Knaster, J.*; Kondo, Keitaro; et al.
no journal, ,
The International Fusion Materials Irradiation Facility (IFMIF) aims to provide an accelerator-based, D-Li neutron source to produce high energy neutrons at sufficient intensity and irradiation volume for DEMO reactor materials qualification. The IFMIF/EVEDA project, which is part of the Broader Approach (BA) agreement between Japan and EU, has the mission to work on the engineering design of IFMIF and to validate the main technological challenges. The prototype accelerator being developed in the IFMIF-EVEDA project consists of an injector, a RFQ accelerator, and a part of superconducting Linac. The design of the cryoplant for SRF-linac has been already completed and it will be started to install to the facility from coming September after the licensing. This article describes the cryoplant for the IFMIF/EVEDA prototype accelerator facility.
