基于数字化仪及延迟线读出的涂硼多丝正比室研究  

Study of a Boron-coated MWPC Based on Digitizer and Delay Line Readout

作　　者：魏阳东 邱琳 李嘉辉 史宏涛 王小胡[1] WEI Yangdong;QIU Lin;LI Jiahui;SHI Hongtao;WANG Xiaohu(School of National Defense Science and Technology,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)

机构地区：[1]西南科技大学国防科技学院,四川绵阳621010

出　　处：《西南科技大学学报》2020年第4期82-86,共5页Journal of Southwest University of Science and Technology

基　　金：国家自然科学基金项目资助(11505147)。

摘　　要：对涂硼多丝正比室的中子探测效率进行了优化,并搭建出一套基于数字化仪及延迟线读出的电子学系统:延迟线读出法利用延迟块实现了时间和位置的转换;数字化仪将多路通道脉冲信号同时采集,结合WaveCatcher软件可对脉冲波形的输出振幅和时间信息实时测量和保存。采用α源对读出系统进行了多丝正比室的位置分辨测试,系统位置分辨率可达0.45 mm,并进行了入射粒子的二维成像显示,测试结果验证了读出系统的可行性。In this study,the neutron detection efficiency of Boron-coated MWPC(Multi-wire Proportional Chamber)was optimized,and an electronic system based on the digitizer and the delay line readout was built.The delay block was used to realize the conversion of time and position with the delay line readout.Multi-channel pulse signals were collected with the digitizer at the same time.Combined with WaveCatcher software,the output amplitude and time information of pulse waveform could be measured and saved in real time.In this study,the α radiation source was used to measure the spatial resolution of the multi-wire proportional chamber of the readout system.The system position resolution could reach 0.45 mm,and the two-dimensional imaging display of the incident particles was carried out.The test results verify the feasibility of the readout system.

关 键 词：涂硼多丝正比室 数字化仪 延迟线 读出系统 

分 类 号：TL811.2[核科学技术—核技术及应用]