Development of Ultra-Thin Beam Monitor

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K17666
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: Fukao Yoshinori 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (80443018)
• Research Collaborator: KANDA Sohtaro ; SHIMOMURA Koichiro ; UENO Yasuhiro
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: beam monitor / muon / scintillating fiber

Outline of Final Research Achievements

We developed a beam monitor for the various precision measurement in fundamental physics using pulsed muon beam. The detector consists of 0.1mm-diameter scintillating fibers to make the thickness of the detector as small as possible. The ultra-thin detector makes it possible to minimize the energy loss and scattering of the beam. The performance of the beam monitor was evaluated using muon beam at J-PARC MUSE D-line. We confirmed the detector gains sufficient signal and succeeded the measurement of the beam profile. We also installed the beam monitor to the J-PARC MuSEUM experiment and contributed to the measurement of muonium hyperfine structure.

Free Research Field

素粒子実験物理学