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Report No.

Ultra-slow muon acceleration using an RFQ towards the g-2/EDM experiment at J-PARC

Kondo, Yasuhiro; Otani, Masashi*; Fukao, Yoshinori*; Hasegawa, Kazuo; Hayashizaki, Noriyosu*; Ishida, Katsuhiko*; Iwashita, Yoshihisa*; Kawamura, Naritoshi*; Kitamura, Ryo*; Mibe, Tsutomu*; Miyake, Yasuhiro*; Saito, Naohito; Shimomura, Koichiro*; Yoshida, Mitsuhiro*

The muon linear accelerator for the muon g-2/EDM experiment in J-PARC is being developed. As the first step of the muon acceleration, the muon acceleration with J-PARC RFQ (Radio-Frequency Quadrupole)-II plans to be demonstrated at H-line of J-PARC MLF. The slow muon will be obtained by the deceleration using the thin metal foil target in the RFQ acceleration test. The intensity of the decelerated muon by the thin metal foil was measured. Based on this result, the beam intensity in the RFQ test at H-line is estimated to be a few /sec. The particle simulation of the RFQ and the following beam diagnostics system is conducted, and it is shown that the emittance measurement at the RFQ exit using the micro-channel plate based beam profile monitor is feasible.



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