New Muon Kicker System for the Decay Muon Beamline at J-PARC

Strasser, P.; Fujimori, Hiroshi; Koseki, K.; Hori, Yoichiro; Matsumoto, Hiroshi; Shimomura, K.; Koda, A.; Kawamura, N.; Makimura, Shunsuke; Kato, M.; Kobayashi, Yasuo; Higemoto, Wataru; Ito, Takashi U.; Ninomiya, Kazuhiko; Kojima, Kenji; Kadono, R.; Nishiyama, K.; Miyake, Yasuhiro

doi:10.1016/j.phpro.2012.04.041

Cited by 8 publications

(5 citation statements)

References 4 publications

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“…Low-energy high-intensity muon beams are now available in an experimental facility at the Japan Proton Accelerator Research Complex (J-PARC) [1,2]. High-intensity pulsed positive or negative muon beams are also now available and are used in a variety of applications [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Estimation of dose and light distributions in water during irradiation of muon beams

2019

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High-intensity muon beams are now available at the Japan Proton Accelerator Research Complex and their use in radiotherapy may become possible in the future. Dose and range estimation are therefore important and optical imaging of the dose or range may be a promising method for that purpose. We calculated the dose and light distributions in water during irradiation of a positive muon beam using Monte Carlo simulation. First, we simulated the dose deposited in water for pencil beams with 30 and 50 MeV positive muons. We were able to clearly identify the Bragg peak in the depth dose profiles by muons and observed that the dose from positrons are added to the Bragg peak area with a ∼10% muon dose. We also found that the lateral dose widths increased as the depth increased and that it was ∼3–5 times wider at the Bragg peak position. With the light distribution of the muon in water, light produced by the positrons was dominant and distributed around the Bragg peak, and the peak positions were estimated within 2 mm differences of the peak position of the dose distributions. It is therefore possible to monitor the Bragg peak position of muons using an optical method.

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Section: Introductionmentioning

confidence: 99%

Estimation of dose and light distributions in water during irradiation of muon beams

2019

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“…Reflecting the proton beam structure from the rapid cycling synchrotron, RCS, the muon beam has a double-pulsed structure; two 100-ns-FWHM pulses separated by 600 ns with a repetition rate of 25 Hz. To utilize the muon beam more efficiently, a kicker system was installed to split the beam into two single-pulsed beams to be delivered to the two experimental areas simultaneously [8]. The system splits a beam up to 60 MeV/c, while a double-pulsed beam with a momentum of up to 120 MeV/c can be delivered alternately to one of these areas.…”

Section: D-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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“…A magnetic kicker system was successfully installed at the D-Line [3], but drastic measures against electro-magnetic noises were necessary. On the other hand, an electric kicker system was also used at area D1 and functioned very well as a beam slicer [4].…”

Section: Electric Kicker Systemmentioning

confidence: 99%

Status of the New Surface Muon Beamline at J-PARC MUSE

Strasser

Koda

Kojima

et al. 2018

Proceedings of the 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (ΜSR2017)

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A new surface muon beamline (S-line) dedicated to condensed matter physics experiments is being constructed at the Muon Science Facility (MUSE) located in the Materials and Life Science Facility (MLF) building at J-PARC. This beamline designed to provide high-intensity surface muons with a momentum of 28 MeV/c will comprise four beam legs and four experimental areas that will share the double-pulsed muon beam. The key feature is a new kicker system comprising two electric kickers to deliver the muon beam to the four experimental areas ensuring an optimum and seamless sharing of the double-pulsed muon beam. At present, only one experimental area (S1) has been completed and is now open to the user program since February 2017. An overview of the different aspects of this new surface muon beamline and the present status of the beam commissioning are presented.

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New Muon Kicker System for the Decay Muon Beamline at J-PARC

Cited by 8 publications

References 4 publications

Estimation of dose and light distributions in water during irradiation of muon beams

Estimation of dose and light distributions in water during irradiation of muon beams

Current Status of Muon Science Facility

Status of the New Surface Muon Beamline at J-PARC MUSE

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