Design and testing of the structure of the eXTP optics
文献类型：会议论文
| 作者 | Song, Z. Y.; Ma, J.; Wang, J.; Zhang, A. M.; Wang, Y. S.; Yang, Y. J.; Jiang, W. C.; Chen, Y.; Yu, K.; Yang, S. |
| 出版日期 | 2022 |
| 会议日期 | 2022-07-17 |
| 会议地点 | Montreal, CANADA |
| 关键词 | X-ray eXTP Structure design Testing Analysis |
| 卷号 | 12181 |
| DOI | 10.1117/12.2629781 |
| 英文摘要 | 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. |
| 产权排序 | 3 |
| 会议录 | SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY
 |
| 会议录出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
| 语种 | 英语 |
| ISSN号 | 0277-786X;1996-756X |
| ISBN号 | 978-1-5106-5344-3; 978-1-5106-5343-6 |
| WOS记录号 | WOS:000865607100149 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/96224]  |
| 专题 | 西安光学精密机械研究所_光电子学研究室 |
| 推荐引用方式 GB/T 7714 | Song, Z. Y.,Ma, J.,Wang, J.,et al. Design and testing of the structure of the eXTP optics[C]. 见:. Montreal, CANADA. 2022-07-17. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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