原子能科学技术Issue(9)：1685-1689,5.DOI:10.7538/yzk.2015.49.09.1685
上升时间法的α／γ波形数字化实时甄别
Real-time α/γ Pulse Shape Digital Discrimination Using Rise-time Method
摘要
Abstract
A real‐time α/γ pulse shape discriminator based on CsI (Tl) scintillator was developed .The rise‐time method was adopted as the inserted algorithm .The real‐time discriminator consists of a high‐speed ADC and a high‐property PFGA .In this paper , the design scheme and the discrimination algorithm of the system were introduced .The real‐time system was tested with a 60 Co γ source and a 241 Am α source .The results show that the size of the designed real‐time system is small .The discrimination figure of merit is 0.687 5 .The system can discriminate α and γ events in real time and its throughput of events is up to 2.5 × 105 s - 1 .关键词
数字化波形甄别/实时甄别/上升时间法/CsI(Tl)闪烁探测器/FPGAKey words
digital pulse shape discrimination/real-time discrimination/rise-time meth-od/CsI(Tl) scintillation detector/FPGA分类
能源科技引用本文复制引用
李奎念,李阳,张美,李斌康..上升时间法的α／γ波形数字化实时甄别[J].原子能科学技术,2015,(9):1685-1689,5.基金项目
国家自然科学基金资助项目（11105106）；国家重点实验室基础研究资助项目 （）
