2025年"核理安邦“联合博士生学术论坛

Energy and timing resolution boost with waveform analysis

Not scheduled

1h

Location: 清华大学核能与新能源技术研究院

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Speaker

宇逸 王

Abstract

To reconstruct the energy and time of events in the liquid scintillator detector, in a neutrino or dark matter experiment, we need to analyze the waveforms from photomultiplier tubes (PMTs). Fast Stochastic Matching Pursuit (FSMP) samples the posterior of PE time sequence for each waveform. It gains acceleration on GPU, and improves the energy and time resolution of LS detectors. The energy resolution is improved by decreasing 12% of relative resolution.

摘要

在中微子或暗物质实验中，为了在液闪探测器中重建事例的能量和时间，我们需要分析PMT读出的波形。快速随机匹配追踪（FSMP）可以对每个波形从光电子（PE）时间序列的后验分布采样。它在GPU上得以加速，最终在液闪探测器中提升能量和时间分辨率。能量的分辨率的提升为降低12%的相对分辨率。