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Power supply system for klystron in J-PARC linac

Kawamura, Masato*; Fukui, Yuji*; Naito, Fujio*; Chishiro, Etsuji; Yamazaki, Masayoshi*; Suzuki, Hiroyuki*; Shinozaki, Shinichi ; Hasegawa, Kazuo

This paper describes the present status, technical specifications, operating experience, and upgrade plane for the power supply system (PS system) for the klystrons in the J-PARC. The PS systems include both the high voltage DC power supplies (DCPSs), which drives one or four modulating-anode klystron each, and the anode-modulators, one per klystron. Currently, the energy output of the J-PARC linac is 181 MeV, which includes the energy necessary to run twenty 324 MHz klystrons. In 2012, the linac will add twenty-five 972 MHz klystrons and upgrade the energy output to 400 MeV.



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