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Report No.

Fabrication status for J-PARC ACS

Ao, Hiroyuki; Ueno, Akira  ; Morishita, Takatoshi  ; Hasegawa, Kazuo; Yamazaki, Yoshishige; Ikegami, Masanori*

The first ACS module consists of two 5-cells ACS tanks and a 5-cells bridge cavity for the buncher module. Three RF tuners are installed to the bridge cavity for fine RF tuning. An operating frequency should be tuned to 972 MHz within the fine-tuning range before a brazing process in a factory. The tuning procedure has been studied with RF simulation analysis and cold-model measurements for ACS and bridge cells. This paper describes RF tuning results, fabrication status and related development items.



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