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

分类： 核科学技术 >> 核探测技术与核电子学 提交时间： 2023-06-18 合作期刊: 《Nuclear Science and Techniques》

AN Ran CHEN Xiang-Lei DAI Chuan-Bo GUO Xiao-Bin GONG Yu-Wei LI Qing-Hua REN Cai LIU Yan-Fen GUO Jun-Qing CONG Long-Han YE Bang-Jiao GUO Zhi-Rong

摘要： 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.

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