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Kobayashi, Tetsuya; Chishiro, Etsuji; Suzuki, Hiroyuki*; Anami, Shozo*; Yamaguchi, Seiya*; Michizono, Shinichiro*; Kawamura, Masato*; Fukui, Yuji*; Fang, Z.*
Proceedings of 2nd Annual Meeting of Particle Accelerator Society of Japan and 30th Linear Accelerator Meeting in Japan, p.320 - 322, 2005/07
Total System of 324MHz-Low Level RF Control for J-PARC Linac was produced and its performance study was done. In this system, in order to stabilize the Klystron output and to compensate the linearity of that, an analog feedback control system is adopted. The response function including phase characteristic (vector locus) of this feedback system was obtained by means of measurement. From this result the prospect for the transient analysis is discussed.
Nagai, Ryoji; Sawamura, Masaru; Hajima, Ryoichi; Kikuzawa, Nobuhiro; Nishimori, Nobuyuki; Nishitani, Tomohiro; Minehara, Eisuke
Proceedings of 1st Annual Meeting of Particle Accelerator Society of Japan and 29th Linear Accelerator Meeting in Japan, p.293 - 295, 2004/08
no abstracts in English
Kobayashi, Tetsuya; Chishiro, Etsuji; Anami, Shozo*; Yamaguchi, Seiya*; Michizono, Shinichiro*
Proceedings of 1st Annual Meeting of Particle Accelerator Society of Japan and 29th Linear Accelerator Meeting in Japan, p.320 - 322, 2004/08
J-PARC (Japan Proton Accelerator Complex) linac, which is 300 m long, consists of 324 MHz accelerating section of the upstream and 972 MHz section (as future plan) of the downstream. In the klystron gallery, totally about 60 RF source control stations will stand for the klystrons and solid-state amplifiers. The error of the accelerating field must be within 
1 degree in phase and 1% in amplitude. Thus, the high phase stability is required to the RF reference for all of the low-level RF control systems and the beam monitor systems. This paper presents a final design and the summary of the performance evaluation of the RF reference distribution system including the timing control signal distribution for this linac.
Kobayashi, Tetsuya; Suzuki, Hiroyuki*; Anami, Shozo*; Yamaguchi, Seiya*; Kawamura, Masato*; Fukui, Yuji*; Kadokura, Eiichi*; Kamikubota, Norihiko*; Takagi, Makoto*; Yoshida, Susumu*; et al.
Proceedings of 1st Annual Meeting of Particle Accelerator Society of Japan and 29th Linear Accelerator Meeting in Japan, p.314 - 316, 2004/08
The beam study of the low-energy front of J-PARC linac has been in progress in the KEK site. Last year, DTL1 (the first tank of three DTL's) was installed in addition to RFQ and the Medium Energy Beam Transport line, and the beam commissioning up to 20MeV has been performed successfully. In this paper, the low level RF (LLRF) System for this beam test is summarized and the performance of the RF feed back control system and monitor system of the phase and amplitude of the accelerating fields (324 MHz) is presented. It was found that the feed back system for Bunchers is also necessary to stabilize and to compensate for the beam induced fields.
Fukuda, Takeshi; Oikawa, Toshihiro; Takeji, Satoru; Isayama, Akihiko; Kawano, Yasunori; Neyatani, Yuzuru; Nagashima, Akira; Nishitani, Takeo; Konoshima, Shigeru; Tamai, Hiroshi; et al.
Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.357 - 367, 2002/09
Times Cited Count：7 Percentile：44.29(Nuclear Science & Technology)no abstracts in English
Sakata, Shinya; Koiwa, Motonao*; Aoyagi, Tetsuo*; Matsuda, Toshiaki
Fusion Engineering and Design, 48(1-2), p.225 - 230, 2000/08
Times Cited Count：6 Percentile：42.55(Nuclear Science & Technology)no abstracts in English
Sakai, Takuro; Sato, Takahiro*; Oikawa, Masakazu*; Kamiya, Tomihiro; Uno, Sadanori
Dai-12-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.97 - 99, 1999/07
no abstracts in English
Tamai, Hiroshi; Konoshima, Shigeru; Hosogane, Nobuyuki; Asakura, Nobuyuki; Sakata, Shinya; Saito, Naoyuki; *; Akasaka, Hiromi; Kawamata, Yoichi; Kurihara, Kenichi
Fusion Engineering and Design, 39-40, p.163 - 167, 1998/00
Times Cited Count：9 Percentile：60.32(Nuclear Science & Technology)no abstracts in English
Kishimoto, Yasuaki; Koga, J. K.*; Tajima, Toshiki*; D.Fisher*
Physical Review E, 55(5), p.5948 - 5963, 1997/05
Times Cited Count：5 Percentile：27.89(Physics, Fluids & Plasmas)no abstracts in English
; Kurihara, Kenichi
JAERI-Tech 95-053, 26 Pages, 1995/12
no abstracts in English
Matsukawa, Makoto; Hosogane, Nobuyuki; Ninomiya, Hiromasa
Plasma Physics and Controlled Fusion, 34(6), p.907 - 921, 1992/00
Times Cited Count：18 Percentile：57.01(Physics, Fluids & Plasmas)no abstracts in English
Fujii, Tsuneyuki; *; Moriyama, Shinichi; Saigusa, Mikio; ; ; Terakado, Masayuki; *; *; *; et al.
Fusion Technology 1990, Vol.1, p.1171 - 1175, 1991/00
no abstracts in English
Kawamata, Yoichi; Kurihara, Kenichi; Kimura, Toyoaki;
JAERI-M 90-005, 30 Pages, 1990/02
no abstracts in English
Kurihara, Kenichi; Kimura, Toyoaki; ; Kawamata, Yoichi; Sakata, Shinya; Akasaka, Hiromi
JAERI-M 90-001, 45 Pages, 1990/02
no abstracts in English
*; *; *; *; Fujisawa, Noboru
JAERI-M 87-112, 38 Pages, 1987/08
no abstracts in English
JAERI-M 82-083, 47 Pages, 1982/07
no abstracts in English
; Naruse, Yuji
Journal of Nuclear Science and Technology, 18(8), p.595 - 607, 1981/00
Times Cited Count：10 Percentile：75.8(Nuclear Science & Technology)no abstracts in English
;
Japanese Journal of Applied Physics, 18(4), p.825 - 834, 1979/00
Times Cited Count：7no abstracts in English
*; ; ; ;
JAERI-M 7630, 42 Pages, 1978/04
no abstracts in English
; ;
JAERI-M 7126, 29 Pages, 1977/06
no abstracts in English
