摘要
为实现紧凑、轻量的目标,采用128路二维条读出的光刻一体化微结构探测器作为时间投影室的核心读出探测器,并对该探测器的工作条件和性能进行研究。该时间投影室的灵敏体积为10cm×10cm×8 cm,总质量小于2.5 kg,探测器雪崩区厚度为100μm。为在保证时间投影室密封性的同时减小其总质量,采用双重嵌套结构低物质量腔室和法兰环式设计。通过引入共模扼流环减小探测器成像中的噪声幅度,消除成像中的噪点以及各路信号的周期性噪声。当腔室中工作气体为93%Ar+7%CO_(2),流速到达0.6 L/min时,测得α粒子的径迹。测试结果与Geant4软件的模拟结果显示出较好的一致性,验证了该时间投影室具有较佳的粒子径迹探测能力。
To enhance the compactness and lightness of the time projection chamber(TPC),an integrated Micromegas detector with a 128-channel two-dimensional strip-readout system was employed as its core readout component,and its working conditions and performance were investigated.The TPC features a sensitive volume of 10 cm×10 cm×8 cm,weights less than 2.5 kg,and has an avalanche region thickness of 100μm in the detector.To ensure the TPC’s sealing while minimizing its mass,a dual nested structure with a low-mass chamber and a flange ring was designed.The incorporation of a common mode choke coil reduced noise in detector imaging,eliminating noise points and periodic noise from various signals.The TPC successfully measured the trajectories of alpha particles using a working gas mixture of 93%Ar and 7%CO_(2)at a flow rate of 0.6 L/min.Test results show good agreement with simulation outcomes obtained using Geant4 software,confirming the TPC’s effective particle track detection capabilities.
作者
靳尚泰
陈雷
李沛玉
庄晓
张昀昱
卢志永
邓桂华
胡守扬
郭佳承
周静
孙鹏飞
宋金兴
赵明锐
贾世海
智宇
吝守龙
许天驹
王浩祯
蒋涛
赵永刚
李笑梅
JIN Shangtai;CHEN Lei;LI Peiyu;ZHUANG Xiao;ZHANG Yunyu;LU Zhiyong;DENG Guihua;HU Shouyang;GUO Jiacheng;ZHOU Jing;SUN Pengfei;SONG Jinxing;ZHAO Mingrui;JIA Shihai;ZHI Yu;LIN Shoulong;XU Tianju;WANG Haozhen;JIANG Tao;ZHAO Yonggang;LI Xiaomei(Institute of Radiochemistry,China Institute of Atomic Energy;Key Laboratory of Nuclear Data,China Institute of Atomic Energy,Beijing 102413,China;Center of Nuclear Technical Support,State Administration of Science,Technology and Industry for National Defence,Beijing 100070,China)
出处
《航天器环境工程》
CSCD
2024年第6期707-713,共7页
Spacecraft Environment Engineering
基金
国家重点研发计划项目(编号:2018YFE0104800,2022YFA1602103)
中国原子能科学研究院放射化学研究所青年基金项目
稳定支持基础科研计划项目(编号:BJ010261223282)。
关键词
光刻一体化微结构探测器
时间投影室
Α粒子
径迹成像
integrated Micromegas detector
time projection chamber(TPC)
alpha particles
track imaging
