Introduction to the high energy cosmic-radiation detection (HERD) facility onboard China's future space station
文献类型:会议论文
作者 | Zhang, Shuang-Nan1,3; Adriani, Oscar12; Albergo, Sebastiano6; Ambrosi, Giovanni7; An, Qi27; Azzarello, Philippe8; Bai, Yonglin2; Bao, Tianwei10; Bernardini, Paolo17; Bertucci, Bruna13 |
出版日期 | 2017 |
会议日期 | 2017-07-10 |
会议地点 | Bexco, Busan, Korea, Republic of |
卷号 | Part F135186 |
英文摘要 | The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads onboard China's Space Station, which is planned for operation starting around 2025 for about 10 years. The main scientific objectives of HERD are searching for signals of dark matter annihilation products, precise cosmic electron (plus positron) spectrum and anisotropy measurements up to 10 TeV, precise cosmic ray spectrum and composition measurements up to the knee energy, and high energy gamma-ray monitoring and survey. HERD is composed of a 3-D cubic calorimeter (CALO) surrounded by microstrip silicon trackers (STKs) from five sides except the bottom. CALO is made of about 7,500 cubes of LYSO crystals, corresponding to about 55 radiation lengths and 3 nuclear interaction lengths, respectively. The top STK microstrips of six X-Y layers are sandwiched with tungsten converters to make precise directional measurements of incoming electrons and gamma-rays. In the baseline design, each of the four side STKs is made of only three layers microstrips. All STKs will also be used for measuring the charge and incoming directions of cosmic rays, as well as identifying back scattered tracks. With this design, HERD can achieve the following performance: energy resolution of 1% for electrons and gamma-rays beyond 100 GeV and 20% for protons from 100 GeV to 1 PeV; electron/proton separation power better than 10-5; effective geometrical factors of >3 m2sr for electron and diffuse gamma-rays, >2 m2sr for cosmic ray nuclei. R&D is under way for reading out the LYSO signals with optical fiber coupled to image intensified IsCMOS and CALO prototype of 250 LYSO crystals. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License (CC BY-NC-ND 4.0). |
产权排序 | 2 |
会议录 | 35th International Cosmic Ray Conference, ICRC 2017 |
会议录出版者 | Sissa Medialab Srl |
语种 | 英语 |
ISSN号 | 18248039 |
源URL | [http://ir.opt.ac.cn/handle/181661/30064] |
专题 | 条纹相机工程中心 |
作者单位 | 1.Key Laboratory of Particle and Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China 2.Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, Shaanxi, China 3.University of Chinese, Academy of Sciences, Beijing, China 4.Department of Engineering Physics, Center for Astrophysics, Tsinghua University, Beijing, China 5.Department of Physics, Guangxi University, Nanning, China 6.Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Catania, Italy 7.Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Perugia, Italy 8.Nuclear and Corpuscular Physics Department, University of Geneva, Geneva, Switzerland 9.University of Pisa, Pisa, Italy 10.Istituto Nazionale di Fisica Nucleare, Sezione di Trento, Trento, Italy |
推荐引用方式 GB/T 7714 | Zhang, Shuang-Nan,Adriani, Oscar,Albergo, Sebastiano,et al. Introduction to the high energy cosmic-radiation detection (HERD) facility onboard China's future space station[C]. 见:. Bexco, Busan, Korea, Republic of. 2017-07-10. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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