19–24 May 2024
Music City Center
US/Central timezone

Muon production target at J-PARC

WECN1
22 May 2024, 15:00
20m
Room 104 (Music City Center)

Room 104

Music City Center

201 Rep. John Lewis Way S, Nashville, TN 37203, USA
Contributed Oral Presentation MC7.T20 Targetry and Dumps WECN: Accelerator Technology and Sustainability (Contributed)

Speaker

Shunsuke Makimura (High Energy Accelerator Research Organization)

Description

A pulsed muon beam has been generated by a 3-GeV 333-microA proton beam on a muon target made of graphite at J-PARC, Materials and Life Science Experimental Facility. The first muon beam was successfully generated in 2008, and 300-kW proton beam has been operated by a fixed target till 2014. To extend the lifetime, a muon rotating target, in which the radiation damage is distributed to a wider area, had been developed. The muon rotating target #1 was installed in 2014 and had operated for five years until 2019. The rotating target #2 has stably operated at 830 kW until now in 2023. 1-MW operation was also completed for 32hours in 2020. Simultaneously, in the COMET experiment to explore the muon-electron conversion process, 8 GeV proton beam with an intensity of 3.2 kW in Phase 1 and 56 kW in Phase 2 will irradiate targets in a superconducting solenoid magnet. The MLF 2nd target station is a future project where 3 GeV protons will irradiate a tungsten target to produce high-brightness neutrons and muons. In this presentation, the status and future prospect of the muon target at J-PARC MLF MUSE, the COMET target, and MLF 2nd target station will be introduced.

Region represented Asia
Paper preparation format Word

Primary author

Shunsuke Makimura (High Energy Accelerator Research Organization)

Co-authors

Koichiro Shimomura (High Energy Accelerator Research Organization) Makoto Yoshida (High Energy Accelerator Research Organization) Masahiro Onoi (Metal Technology Co. Ltd.) Masami Iio (High Energy Accelerator Research Organization) Naoya Kamei (High Energy Accelerator Research Organization) Naoyuki Sumi (High Energy Accelerator Research Organization) Naritoshi Kawamura (High Energy Accelerator Research Organization) Satoshi Mihara (High Energy Accelerator Research Organization) Shiro Matoba (High Energy Accelerator Research Organization) Yoshinori Fukao (High Energy Accelerator Research Organization) Yusuke Uchiyama (High Energy Accelerator Research Organization) Yutaka Nagasawa (Metal Technology Co. Ltd.) Hiroyuki Shidara (Metal Technology Co. Ltd.)

Presentation materials

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