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暗物质粒子探测卫星中子探测器的GEANT4模拟
何明; 马涛; 常进; 张岩; 黄永益; 藏京京; 伍健; 董铁矿
2016
Source Publication天文学报
Issue1Pages:1-8
Abstract近几十年暗物质研究已逐渐成为天文学研究的重要领域之一,相关理论研究和试验项目日新月异,中国的暗物质粒子探测卫星正是在此背景下提出的.由于暗物质粒子探测卫星的探测对象涉及高能电子,为了减少其他带电粒子(主要是质子)被误认为是电子的事件率,必须采用适当的方法区分质子和电子.实验表明高能质子在BGO(锗酸铋)量能器内发生的强子簇射与电子在BGO量能器内发生的电磁簇射有明显的区别,且强子簇射通常伴随着大量的次级中子产生,通过测量BGO量能器底部出射的次级中子信号和入射粒子在BGO量能器中簇射的形状可以有效区分入射到BGO量能器的粒子是质子还是电子.介绍了暗物质粒子探测卫星中子探测器的构成以及探测原理,...
Keyword宇宙学:暗物质 仪器:探测器 技术:光测量
Language中文
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16901
CollectionPMO中文期刊
Recommended Citation
GB/T 7714
何明,马涛,常进,等. 暗物质粒子探测卫星中子探测器的GEANT4模拟[J]. 天文学报,2016(1):1-8.
APA 何明.,马涛.,常进.,张岩.,黄永益.,...&董铁矿.(2016).暗物质粒子探测卫星中子探测器的GEANT4模拟.天文学报(1),1-8.
MLA 何明,et al."暗物质粒子探测卫星中子探测器的GEANT4模拟".天文学报 .1(2016):1-8.
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