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Sakanaka, Shogo*; Akemoto, Mitsuo*; Aoto, Tomohiro*; Arakawa, Dai*; Asaoka, Seiji*; Enomoto, Atsushi*; Fukuda, Shigeki*; Furukawa, Kazuro*; Furuya, Takaaki*; Haga, Kaiichi*; et al.
Proceedings of 1st International Particle Accelerator Conference (IPAC '10) (Internet), p.2338 - 2340, 2010/05
Future synchrotron light source using a 5-GeV energy recovery linac (ERL) is under proposal by our Japanese collaboration team, and we are conducting R&D efforts for that. We are developing high-brightness DC photocathode guns, two types of cryomodules for both injector and main superconducting (SC) linacs, and 1.3 GHz high CW-power RF sources. We are also constructing the Compact ERL (cERL) for demonstrating the recirculation of low-emittance, high-current beams using above-mentioned critical technologies.
Kamiya, Junichiro; Takayanagi, Tomohiro; Kawakubo, Toshimichi*; Murasugi, Shigeru*; Nakamura, Eiji*
IEEE Transactions on Applied Superconductivity, 16(2), p.168 - 171, 2006/06
Times Cited Count：5 Percentile：29.26(Engineering, Electrical & Electronic)The kicker magnets are installed in the extraction section of the RCS (Rapid Cycling Synchrotron) in J-PARC (Japan Proton Accelerator Research Complex) facility. They extract the 3GeV proton beam to a downstream beam transport line. In order to achieve 1MW beam power, kicker is required to have a wide aperture, UHV (ultra-high vacuum) in its chamber, and uniformity of magnetic field. In this paper, we will introduce the specification of the extraction kicker system in the RCS, and report countermeasure against the technical challenge described above.
Kamiya, Junichiro; Takayanagi, Tomohiro; Kawakubo, Toshimichi*; Murasugi, Shigeru*; Nakamura, Eiji*
Proceedings of 2005 Particle Accelerator Conference (PAC '05) (CD-ROM), p.1009 - 1011, 2005/00
The kicker magnets are installed in the vacuum chamber at the extraction section of the RCS (Rapid Cycling Synchrotron) in J-PARC (Japan Proton Accelerator Research Complex) facility. They kick the 3GeV proton beam to the extraction septum magnets followed by a downstream beam transport line. The RCS is designed to achieve the 1MW beam power with minimum loss. Therefore, the kicker is required to have a wide aperture, UHV (ultra-high vacuum) in its chamber, and uniformity of magnetic field. The wide aperture requires large exciting current and the use environment of the thyratron is very tough. Therefore aging run was found out to be needed. And the uniformity of the magnetic field was improved by changing length of the conductors. In order to achieve the UHV, we succeeded in reducing outgas from components of the magnet. In this paper, we will introduce the specification of the extraction kicker system in the RCS, and report countermeasure against the technical challenge described above.
Kamiya, Junichiro; Takayanagi, Tomohiro; Nakamura, Eiji*; Shimada, Taihei; Suzuki, Hiromitsu; Kawakubo, Toshimichi*; Shigaki, Kenta*; Murasugi, Shigeru*; Tazawa, Shichiro*
Dai-14-Kai Kasokuki Kagaku Kenkyu Happyokai Hokokushu, p.84 - 86, 2003/11
no abstracts in English
X.D.Zheng*; ; Maebara, Sunao; *; ; *; Yakayama, Ken*; *; *; Ogawa, Masao*; et al.
Nuclear Instruments and Methods in Physics Research A, 407(1-3), p.198 - 202, 1998/00
Times Cited Count：1 Percentile：22.13(Instruments & Instrumentation)no abstracts in English
