Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japanand the 29th Linear Accelerator Meeting in Japan (August 4 - 6, 2004, Funabashi Japan)

RF and Timing Reference Distribution System for J-PARC Linac
T. Kobayashi1,A)

A)

B)

B)

, E. Chishiro , S. Anami , S. Yamaguchi and S. Michizono
Japan Atomic Energy Research Institute (JAERI)
2-4 Shirakata-Shirane, Tokai, Naka, Ibaraki, 319-1195
B)High Energy Accelerator Research Organization (KEK)
1-1 Oho, Tsukuba, Ibaraki, 305-0801

B)

A)

Abstract
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 bewithin +/- 1 degree in phase and +/- 1% in amplitude. Thus, the high phase stability is required to the RF reference forall 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.

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1E-mail: tetsuya.kobayashi@j-parc.jp

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Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japanand the 29th Linear Accelerator Meeting in Japan (August 4 - 6, 2004, Funabashi Japan)

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Ei\fdOC+ ¡­s9o[4]S.
Michizono, et al., “Digital RF Control System for 400Å#­ (pgOC' ,~MeV Proton Linac of JAERI/KEK Joint Project”, Proc ofÈs9±6Yi_~È-Ò*Â87
Linear Accelerator Conference 2002, 2002
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pp. 366-368, 2003

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