Design and verification of the HXI collimator on the ASO-S mission

• 作者: Deng-Yi Chen Yi-Ming Hu Tao Ma Yang Su Jian-Feng Yang Jian-Ping Wang Guang-Zhou Xu Xian-Kai Jiang Jian-Hua Guo Yong-Qiang Zhang Yan Zhang Wei Chen Jin Chang Zhe Zhang
• 来源期刊: 天文和天体物理学研究
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: Research Papers
• 页码范围: 111-122
• 页数: 12页
• 语种: 英文
• DOI: 10.1088/1674-4527/21/6/136

摘要

A space-borne hard X-ray collimator,comprising 91 pairs of grids,has been developed for the Hard X-ray Imager(HXI).The HXI is one of the three scientific instruments onboard the first Chinese solar mission:the Advanced Space-based Solar Observatory(ASO-S).The HXI collimator(HXI-C)is a spatial modulation X-ray telescope designed to observe hard X-rays emitted by energetic electrons in solar flares.This paper presents the detailed design of the HXI-C for the qualification model that will be inherited by the flight model.Series tests on the HXI-C qualification model are reported to verify the ability of the HXI-C to survive the launch and to operate normally in on-orbit environments.Furthermore,results of the X-ray beam test for the HXI-C are presented to indirectly identify the working performance of the HXI-C.