| Monte Carlo simulation of HERD calorimeter | |
Xu, M.; Chen, G.M.; Dong, Y.W.; Lu, J.G.; Quan, Z.; Wang, L. ; Wang, Z.G.; Wu, B.B.; Zhang, S.N.
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| 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 |
| 会议主办者 | The Society of Photo-Optical Instrumentation Engineers (SPIE) |
| 出版者 | SPIE |
| 产权排序 | 3 |
| 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. |
| 作者部门 | 光谱成像技术实验室 |
| 收录类别 | EI |
| 语种 | 英语 |
| ISSN号 | 0277786X |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/22577 |
| 专题 | 光谱成像技术研究室 |
| 推荐引用方式 GB/T 7714 | Xu, M.,Chen, G.M.,Dong, Y.W.,et al. Monte Carlo simulation of HERD calorimeter[C]:SPIE,2014. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Monte Carlo simulati（518KB） | 限制开放 | CC BY-NC-SA | 请求全文 | |||
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