The High cosmic-Radiation Detection (HERD) Facility onboard China's Future Space Station

	The High cosmic-Radiation Detection (HERD) Facility onboard China's Future Space Station
	Zhang, SN; Adriani, O; Albergo, S; Ambrosi, G; An, Q; Bao, TW; Battiston, R; Bi, XJ; Cao, Z; Chai, JY
	2014
会议名称	Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray
会议日期	2014-06-22
会议地点	Montreal, CANADA
关键词	space experiment calorimeter microstrip silicon track cosmic ray dark matter gamma-ray electron
卷号	9144
通讯作者	Zhang, SN (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing, Peoples R China.
英文摘要	The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads of the cosmic lighthouse program onboard China's Space Station, which is planned for operation starting around 2020 for about 10 years. The main scientific objectives of HERD are indirect dark matter search, 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 10(4) cubes of LYSO crystals, corresponding to about 55 radiation lengths and 3 nuclear interaction lengths, respectively. The top STK microstrips of seven 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 SKTs 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, 20% for protons from 100 GeV to 1 PeV; electron/proton separation power better than 10(-5); effective geometrical factors of >3 m(2) sr for electron and diffuse gamma-rays, >2 m(2) sr for cosmic ray nuclei. R&D is under way for reading out the LYSO signals with optical fiber coupled to image intensified CCD and the prototype of one layer of CALO.
收录类别	EI ; CPCI
产权排序	第十五完成单位
会议网址	http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1893948
会议录	Proceedings of SPIE - SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
学科主题	Astronomy & Astrophysics; Instruments & Instrumentation; Optics
语种	英语
ISSN号	0277-786X
ISBN号	978-0-8194-9612-6
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/191]
专题	云南天文台_高能天体物理研究组
作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Zhang, SN,Adriani, O,Albergo, S,et al. The High cosmic-Radiation Detection (HERD) Facility onboard China's Future Space Station[C]. 见:Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray. Montreal, CANADA. 2014-06-22.http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1893948.