Design and tests of the prototype a beam monitor of the CSR external target experiment  

作　　者：Hu-Lin Wang Zhen Wang Chao-Song Gao Jian-Wei Liao Xiang-Ming Sun Hai-Bo Yang Cheng-Xin Zhao Jun Liu Peng Ma Zi-Li Li Bi-Hui You Ping Yang Di Guo Le Xiao Dong-Liang Zhang Yue-Zhao Zhang Sheng Dong Wan-Han Feng Yu-Xin Qiao Zheng-Yu Hu Qing-Wen Ye Zeng-Tao Guo Guang-Ming Huang Feng Liu 

机构地区：[1]PLAC,Key Laboratory of Quark and Lepton Physics(MOE),Central China Normal University,Wuhan 430079,China [2]Hubei Provincial Engineering Research Center of Silicon Pixel Chip&Detection Technology,Wuhan 430079,China [3]School of Physics and Electronic Science,Guizhou Normal University,Guiyang 550001,China [4]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China

出　　处：《Nuclear Science and Techniques》2022年第3期137-151,共15页核技术（英文）

基　　金：supported by the National Natural Science Foundation of China (Nos. 11927901, U2032209, 12005046)

摘　　要：A prototype beam monitor was designed to provide tracking information for heavy-ion projectiles for the cool storage ring(CSR)external target experiment(CEE)at the Heavy Ion Research Facility in Lanzhou(HIRFL).High granularity and direct charge sensing are the main features of this device.It measures the beam position in a two-dimensional(2D)plane transverse to the beam direction on an event-by-event basis.The current design consists of two field cages inside a single vessel that operates independently and has electrical drift fields in orthogonal directions.Preliminary tests of the prototype were performed using a^(241)Am a source.The results show that a spatial resolution of less than 40μm and a time resolution of less than 600 ns can be achieved.

关 键 词：CEE Beam monitor Heavy ion Topmetal sensor Tracking Field cage 

分 类 号：TL594[核科学技术—核技术及应用]