Three-detector setup for PAL spectrometer based on DRS4 waveform digitizing board  

作　　者：安然 陈祥磊 代传波 郭晓彬 龚玉巍 李清华 任才 刘艳芬 郭俊清 丛龙翰 叶邦角 郭智荣 

机构地区：[1]Wuhan No.2 Ship Design and Research Institute [2]State Key Laboratory of Particle Detection and Electronics, Department of Modern Physics,University of Science and Technology of China

出　　处：《Nuclear Science and Techniques》2015年第4期57-60,共4页核技术（英文）

基　　金：Supported by the National Natural Science Foundation of China(Nos.11175171,10835006,11105139 and 10975133)

摘　　要：A digital three-detector positron lifetime spectrometer was developed.It consists of a DRS4 waveform digitizing board and three La Br3scintillation detectors coupled to XP2020Q photomultiplier tubes.DRS4 waveform digitizing allows data sampling at up to 5 GSPS with high amplitude resolution,with good time scale linearity and stability.In the triple-coincidence,the new system could reach a 195 ps time resolution,which is better than the conventional analog apparatus with the same detectors.This spectrometer can be applied to the other scintillation timing measurements with picoseconds accuracy.A digital three-detector positron lifetime spectrometer was developed. It consists of a DRS4 waveform digitizing board and three LaBr3 scintillation detectors coupled to XP2020Q photomultiplier tubes. DRS4 waveform digitizing allows data sampling at up to 5 GSPS with high amplitude resolution, with good time scale linearity and stability. In the triple-coincidence, the new system could reach a 195 ps time resolution, which is better than the conventional analog apparatus with the same detectors. This spectrometer can be applied to the other scintillation timing measurements with picoseconds accuracy.

关 键 词：闪烁探测器 波形数字化 数字化板 光谱仪 PAL 设置 正电子寿命 光电倍增管 

分 类 号：TL817[核科学技术—核技术及应用]