Design and testing of the structure of the eXTP optics

doi:10.1117/12.2629781

IHEP OpenIR > 粒子天体物理中心

	Design and testing of the structure of the eXTP optics
	eXTP
	2022
发表期刊	SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY
ISSN	0277-786X
EISSN	1996-756X
ISBN	978-1-5106-5344-3; 978-1-5106-5343-6
卷号	12181 页码:121816C
条目编号	IHEP00035386
文章类型	Article
摘要	The abbreviation eXTP represents the enhanced X-ray timing and polarimetry, which is a key science mission initiated by the Chinese scientists, designed to study the state of matter under extreme conditions of density, gravity and magnetism [1]. Various payloads would be on board of the satellite. The SFA, namely the Spectroscopy Focusing Array, consisting of 9 identical X-ray telescopes working in the energy range of 0.5-10 keV, will be the focus here [1]. SFA has a field-ofview of 12 arcmin for each and a collecting area of 900 cm(2) and 550 cm(2) for each at 2 keV and 6 keV respectively [1]. This paper starts with a brief introduction of the general optics, and then goes across some important design aspects. It covers contents from the structural and thermal designs to the CAE analyses as well as the current status. The large diameter and huge focal length of the optics will definitely bring big issues to the robustness of the carrying structure under the severe conditions given by the launcher. According to the current design, the mirror assembly will have 3 feet and 24 spokes. Vibration tests were already performed on a few prototypes by IHEP, and a preliminary evaluation on the feasibility of the design has been achieved. It clearly stated that the current design with only a single spider can probably survive the vibration tests assuming a compromised test condition somewhere. CAE models were adjusted thereafter to match the test results, which could be used for further assessments in a near future. Of course, there are always uncertainties associated with our arguments. More detailed prototypes with mechanically fully representative shells were still under design. Hopefully, highly reliable results could be retrieved soon.
会议名称	Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray Part of SPIE Astronomical Telescopes and Instrumentation Conference
会议地点	Montreal, CANADA
会议日期	JUL 17-22, 2022
关键词	X-ray eXTP Structure design Testing Analysis
DOI	10.1117/12.2629781
收录类别	ADS
语种	英语
WOS记录号	WOS:000865607100149
ADS Bibcode	2022SPIE12181E..6CS
ADS URL	https://ui.adsabs.harvard.edu/abs/2022SPIE12181E..6CS
ADS引文	https://ui.adsabs.harvard.edu/abs/2022SPIE12181E..6CS/citations
引用统计	正在获取... 被引频次：1 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/298966
专题	粒子天体物理中心
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	eXTP. Design and testing of the structure of the eXTP optics[J]. SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY,2022,12181:121816C.
APA	eXTP.(2022).Design and testing of the structure of the eXTP optics.SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY,12181,121816C.
MLA	eXTP."Design and testing of the structure of the eXTP optics".SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY 12181(2022):121816C.