High-precision CSNS beam monitor system conceptual design based on SiC  

作　　者：Ye He Xingchen Li Zijun Xu Ming Qi Congcong Wang Chengwei Wang Hai Lu Xiaojun Nie Ruirui Fan Hantao Jing Weiming Song Keqi Wang Kai Liu Peilian Liu Hui Li Zaiyi Li Chenxi Fu Xiyuan Zhang Xiaoshen Kang Zhan Li Weiguo Lu Suyu Xiao Xin Shi 

机构地区：[1]Nanjing University,Gulou District,Nanjing,210093,People’s Republic of China [2]Institute of High Energy Physics,Chinese Academy of Sciences,Shijingshan District,Beijing,100049,People’s Republic of China [3]Jilin University,Chaoyang District,Changchun,130015,People’s Republic of China [4]Spallation Neutron Source Science Center,Dongguan,People’s Republic of China [5]Liaoning University,Huanggu District,Shenyang,110136,People’s Republic of China [6]School of Nuclear Science and Technology,Lanzhou University,Lanzhou,730000,People’s Republic of China [7]Frontiers Science Center for Rare Isotopes,Lanzhou University,Lanzhou,730000,People’s Republic of China [8]Tsinghua University,Haidian District,Beijing,100084,People’s Republic of China [9]Shandong Institute of Advanced Technology,Licheng District,Jinan,250000,People’s Republic of China

出　　处：《Radiation Detection Technology and Methods》2024年第4期1594-1603,共10页辐射探测技术与方法(英文)

基　　金：supported by the National Natural Science Foundation of China(No.12305207,No.11961141014,No.12375184,No.12205321);the State Key Laboratory of Particle Detection and Electronics(No.SKLPDE-ZZ-202312,No.SKLPDE-KF-202313,No.SKLPDE-KF-202401);the Natural Science Foundation of Shandong Province Youth Fund(No.ZR202111120161).

摘　　要：Purpose A high-precision beam monitor system based on silicon carbide PIN sensor is designed for the 1.6 GeV proton beam of China Spallation Neutron Source.The conceptual design of the beam monitor system is composed of front-end electronics with SiC PIN sensor and readout system.Method The charge collection efficiency of the SiC PIN sensor after proton radiation is studied with 80 MeV proton beam.98%charge will be collected by the SiC PIN sensor after the system running one year,which can meet requirements of beam monitoring.Research on the performance of the front-end electronics and readout system is completed for better data acquisition.The front-end electronics is studied to figure out the effect of feedback resistor.The readout system can deal with signal with sampling rate of 5 GHz,and the data acquisition rate is 1 Hz.Results The uncertainty of proton beam fluence is below 0.68%in the beam monitor system.Conclusion The results reveal that the beam monitor system can be used for the 1.6 GeV proton beam of China Spallation Neutron Source.

关 键 词：Beam monitor system SiC PIN Proton radiation 

分 类 号：O57[理学—粒子物理与原子核物理]