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Report No.

Demonstration of the muon RF acceleration with the negative muonium

Kitamura, Ryo*; Otani, Masashi*; Fukao, Yoshinori*; Futatsukawa, Kenta*; Kawamura, Naritoshi*; Mibe, Tsutomu*; Miyake, Yasuhiro*; Yamazaki, Takayuki*; Kondo, Yasuhiro   ; Hasegawa, Kazuo; Morishita, Takatoshi  ; Bae, S.*; Choi, S.*; Kim, B.*; Razuvaev, G. P.*; Iinuma, Hiromi*; Nakazawa, Yuga*; Ishida, Katsuhiko*; Saito, Naohito; Iijima, Toru*; Sue, Yuki*

Muon acceleration is an important technique in exploring the new frontier of physics. A new measurement of the muon dipole moments is planned in J-PARC using the muon linear accelerator. The low-energy (LE) muon source using the thin metal foil target and beam diagnostic system were developed for the world's first muon acceleration. Negative muonium ions from the thin metal foil target as the LE muon source was successfully observed. Also the beam profile of the LE positive muon was measured by the LE-dedicated beam profile monitor. The muon acceleration test using a Radio-Frequency Quadrupole linac (RFQ) is being prepared as the first step of the muon accelerator development. In this paper, the latest status of the first muon acceleration test is described.



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