Monte Carlo simulation of HERD calorimeter

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 光学影像学习与分析中心

	Monte Carlo simulation of HERD calorimeter
	Wang, L.
	2014
会议名称	space telescopes and instrumentation 2014: ultraviolet to gamma ray
会议日期	2014-06-22
会议地点	montreal, qc, canada
中文摘要	the high energy cosmic-radiation detection (herd) facility onboard china's space station is planned for operation starting around 2020 for about 10 years. it is designed as a next generation space facility focused on indirect dark matter search, precise cosmic ray spectrum and composition measurements up to the knee energy, and high energy gamma-ray monitoring and survey. the calorimeter plays an essential role in the main scientific objectives of herd. a 3-d cubic calorimeter filled with high granularity crystals as active material is a very promising choice for the calorimeter. herd is mainly composed of a 3-d calorimeter (calo) surrounded by silicon trackers (tk) from all five sides except the bottom. calo is made of 9261 cubes of lyso crystals, corresponding to about 55 radiation lengths and 3 nuclear interaction lengths, respectively. here the simulation results of the performance of calo with geant4 and fluka are presented: 1) the total absorption calo and its absorption depth for precise energy measurements (energy resolution: 1% for electrons and gammarays beyond 100 gev, 20% for protons from 100 gev to 1 pev); 2) its granularity for particle identification (electron/proton separation power better than 10-5); 3) the homogenous geometry for detecting particles arriving from every unblocked direction for large effective geometrical factor (2sr for electron and diffuse gammarays, >2 m2sr for cosmic ray nuclei); 4) expected observational results such as gamma-ray line spectrum from dark matter annihilation and spectrum measurement of various cosmic ray chemical components. © 2014 spie.
收录类别	EI
合作状况	国内
产权排序	3
会议主办者	the society of photo-optical instrumentation engineers (spie)
会议录出版者	spie
语种	英语
ISSN号	0277786x
内容类型	会议论文
源URL	[http://ir.opt.ac.cn/handle/181661/22577]
专题	西安光学精密机械研究所_光学影像学习与分析中心
推荐引用方式 GB/T 7714	Wang, L.. Monte Carlo simulation of HERD calorimeter[C]. 见:space telescopes and instrumentation 2014: ultraviolet to gamma ray. montreal, qc, canada. 2014-06-22.