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用于极低放射性材料筛选的带电粒子谱仪的研发

18 Aug 2021, 11:30
15m
Oral report 5. 粒子物理实验技术 Parallel Session V:Particle Detector Technology

Speaker

Mrs Haiyan Du (sjtu)

Description

极低本底材料的筛选对于稀有事列的探测(如暗物质直接探测,无中微子双贝塔衰变)极为重要,材料本底已经成为限制其灵敏度的关键因素之一。我们设计了一款带电粒子谱仪,主要用于测量材料表面放射性。谱仪的核心是一个低本底,高精度,有效测量面积约2000 cm2的气体时间投影室(TPC)。 TPC采用Micromegas 探测器作为读出平面,具有同时测量粒子能量与径迹的功能。利用气体TPC 独特的径迹重建功能,我们可以很好的辨别粒子来源,从而进一步压低本底,提高谱仪的灵敏度。本次报告将主要报告谱仪的概念设计及其原型探测器的初步测试。

Primary author

Mrs Haiyan Du (sjtu)

Presentation materials

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