强激光与粒子束2016，Vol.28Issue(10)：106001-1-106001-6,6.DOI:10.11884/HPLPB201628.151304
新型涂硼热中子 MWPC 探测器的时间信号读出方法
Readout of the time signals of the MWPC detector with boron sensitive thermal neutron
摘要
Abstract
The two dimensional sensitive detector based on 1 0 B film is a newly developed thermal neutron detector with the advantages of large sensitive area,good time and position resolution,high n/γ inhibition ability,strong ability of anti-radiation, two-dimensional readout and good resistance to the count rate capability.So it is important to carry out the study of the readout method of the two-dimensional position sensitive neutron detector based on the B neutron transfer layer and MWPC structure.In this paper,a readout board based on delay-line readout method is presented.By measuring the time difference between the arri-ving signals on both sides of delay-line,the original position can be well recovered.By applying a hardwire filter in FPGA,the da-ta rate needs to be transferred can be reduced remarkably.The RMS of the TDC is less than 50 ps.The integral nonlinearity is better than 1.1 LSB,the differential non-linearity is better than 0.5 LSB.The board achieves event rates of 1.3 MHz for periodic signals and the data can be transferred by Gbit ethernet daughter board simultaneously.关键词
延迟线法/二维读出/FPGA/中子探测器Key words
delay-line/two-dimensional readout/FPGA/neutron detector分类
能源科技引用本文复制引用
杨波,曹平,孙维佳,张莹,安琪,陈波..新型涂硼热中子 MWPC 探测器的时间信号读出方法[J].强激光与粒子束,2016,28(10):106001-1-106001-6,6.基金项目
国家自然科学基金委员会与中国工程物理研究院联合基金项目(U15301111) （U15301111）
