Development of a scintillating-fiber-based beam monitor for the coherent muon-to-electron transition experiment  

作　　者：Yu Xu Yun-Song Ning Zhi-Zhen Qin Yao Teng Chang-Qing Feng Jian Tang Yu Chen Yoshinori Fukao Satoshi Mihara Kou Oishi 

机构地区：[1]School of Physics,Sun Yat-sen University,Guangzhou 510275,China [2]State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China [3]Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China [4]High Energy Accelerator Research Organization(KEK),Ibaraki 305‑0801,Japan [5]Department of Physics,Imperial College London,London SW72AZ,UK

出　　处：《Nuclear Science and Techniques》2024年第4期156-164,共9页核技术（英文）

基　　金：supported in part by Fundamental Research Funds for the Central Universities(23xkjc017)at Sun Yat-sen University;the National Natural Science Foundation of China(No.12075326);JSPS KAKENHI(No.22H00139)。

摘　　要：The coherent muon-to-electron transition(COMET)experiment is a leading experiment for the coherent conversion of μ^(-)N→e^(-)N using a high-intensity pulsed muon beamline,produced using innovative slow-extraction techniques.Therefore,it is critical to measure the muon beam characteristics.We set up a muon beam monitor(MBM),where scintillating fibers woven in a cross shape were coupled to silicon photomultipliers to measure the spatial profile and timing structure of the extracted muon beam for the COMET.The MBM detector was tested successfully with a proton beamline at the China Spallation Neutron Source and took data with good performance in the commissioning run.The development of the MBM,including its mechanical structure,electronic readout,and beam measurement results,are discussed.

关 键 词：Beam instrumentation Profile monitor Scintillating fiber Silicon photomultipliers 

分 类 号：TL81[核科学技术—核技术及应用]