Positron separators in Superomega muon beamline at J-PARC

Ikedo, Yutaka; Miyake, Yasuhiro; Shimomura, K.; Strasser, P.; Kawamura, N.; Nishiyama, K.; Makimura, Shunsuke; Fujimori, Hiroshi; Koda, A.; Nakamura, Jumpei; Nakamura, Takashi; Kobayashi, Yasuo; Adachi, T.; Pant, Amba Datt; Ogitsu, T.; Nakamoto, T.; Sasaki, Κ.; Ohata, Hirokatsu; Okada, Ryutaro; Yamamoto, A.; Makida, Y.; Yoshida, Makoto; Okamura, Takahiro; Okubo, R.; Higemoto, Wataru; Ito, Takashi U.; Nakahara, K.; Ishida, K.

doi:10.1016/j.nimb.2013.07.060

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…The total flux of the beam is on the order of 10 8 µ + /s. The beamline consists of a large-acceptance capture solenoid [10], a curved solenoid for transport and charge-selection [11], and axial-focusing solenoids with Wien filters [12].…”

Section: Surface Muon Beammentioning

confidence: 99%

The Ultra-Slow Muon beamline at J-PARC: present status and future prospects

Kanda

Teshima²,

Adachi³

et al. 2023

J. Phys.: Conf. Ser.

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At J-PARC MLF, MUSE provides the world-highest flux of pulsed muon beams. U-Line, one of the four beamlines in the facility, features an intense surface muon beam from Super-Omega and Ultra-slow muon generated by laser ionization of thermal muonium in vacuo. The Ultra-slow muon beam is characterized by variable energy from sub-keV to tens of keV and a time resolution of several tens of times better than that of ordinary pulsed beams. These features enable the study of interesting phenomena localized at surfaces and near interfaces and fast dynamics that cannot be observed with ordinary pulsed beams. Commissioning of the beamline and instruments is underway in preparation for the start of user programs. This paper presents an overview of the facility, its current status, and its prospects.

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Section: Surface Muon Beammentioning

confidence: 99%

The Ultra-Slow Muon beamline at J-PARC: present status and future prospects

Kanda

Teshima²,

Adachi³

et al. 2023

J. Phys.: Conf. Ser.

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“…Since the conversion efficiency from the surface muon to USM is only below 10 −3 , high surface muon flux is crucially anticipated. To realize a high intensity beam, the U-line consists of three magnet devices, i.e., a normal-conducting front-end capture solenoid, a superconducting curved transport solenoid, and an axial focusing solenoid [11,12]. Muons with momenta of up to 45 MeV/c can be captured with a large aperture front-end solenoid located in the primary proton tunnel.…”

Section: U-linementioning

confidence: 99%

Current Status of Muon Science Facility

Kawamura

2021

Proceedings of the 3rd J-Parc Symposium (J-Parc2019)

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A muon experimental facility, also known as the Muon Science Establishment (MUSE), is integrated into the Materials and Life Science Facility building with the spallation neutron facility, JSNS, and consumes about 5% of proton beam from RCS to provide the world highest intensity pulsed muon beam for a variety of muon science experiments. In this review, we present the current status of MUSE, which is still in the process of being developed into its fully loaded form.

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“…The U-line, or "Super-Omega muon beamline," consists of three magnet devices, i.e., a normally conducting capture solenoid, a superconducting curved transport solenoid, and an axial focusing solenoid [22,23]. Muons with momenta of up to 45 MeV/c can be captured with a large acceptance solid angle (400 msr) of the front-end solenoid in tunnel M2, which faces the upstream side of the muon target at 135 • .…”

Section: U-linementioning

confidence: 99%

Materials and Life Science Experimental Facility at the Japan Proton Accelerator Research Complex IV: The Muon Facility

Higemoto

Kadono

Kawamura

et al. 2017

QuBS

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A muon experimental facility, known as the Muon Science Establishment (MUSE), is one of the user facilities at the Japan Proton Accelerator Research Complex, along with those for neutrons, hadrons, and neutrinos. The MUSE facility is integrated into the Materials and Life Science Facility building in which a high-energy proton beam that is shared with a neutron experiment facility delivers a variety of muon beams for research covering diverse scientific fields. In this review, we present the current status of MUSE, which is still in the process of being developed into its fully fledged form.

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Positron separators in Superomega muon beamline at J-PARC

Cited by 10 publications

References 5 publications

The Ultra-Slow Muon beamline at J-PARC: present status and future prospects

The Ultra-Slow Muon beamline at J-PARC: present status and future prospects

Current Status of Muon Science Facility

Materials and Life Science Experimental Facility at the Japan Proton Accelerator Research Complex IV: The Muon Facility

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