Yanji Yang, Yusa Wang, Dawei Han, Juan Wang, Weiwei Cui, Yuxuan Zhu, Min Cong, Jia Ma, Zijian Zhao, Dongjie Hou, Xiongtao Yang, Can Chen, Bing Lu, He Lv, Wenxin Sun, Jiawei Zhang, Ke Yu, Shaohuai Wang, Dongxu Liu, Qian Zhang, Xiyan Bi, Fangjun Lu, Peter Friedrich, Josef Eder, Katinka Hartmann, Vadim Burwitz, Arnoud Keereman, Andrea Santovincenzo, Dervis Vernani, Giovanni Bianucci, Giuseppe Valsecch, Lizhi Sheng, Yongqing Yan, Pengfei Qiang, Bo Wang, Langping Wang, Dianlong Wang, Fei Ding, Lei Wang, Junsheng Cheng, Yong Chen
{"title":"EP卫星FXT光学系统的设计与测试","authors":"Yanji Yang, Yusa Wang, Dawei Han, Juan Wang, Weiwei Cui, Yuxuan Zhu, Min Cong, Jia Ma, Zijian Zhao, Dongjie Hou, Xiongtao Yang, Can Chen, Bing Lu, He Lv, Wenxin Sun, Jiawei Zhang, Ke Yu, Shaohuai Wang, Dongxu Liu, Qian Zhang, Xiyan Bi, Fangjun Lu, Peter Friedrich, Josef Eder, Katinka Hartmann, Vadim Burwitz, Arnoud Keereman, Andrea Santovincenzo, Dervis Vernani, Giovanni Bianucci, Giuseppe Valsecch, Lizhi Sheng, Yongqing Yan, Pengfei Qiang, Bo Wang, Langping Wang, Dianlong Wang, Fei Ding, Lei Wang, Junsheng Cheng, Yong Chen","doi":"10.1007/s10686-022-09870-9","DOIUrl":null,"url":null,"abstract":"<div><p>The Einstein Probe (EP) mission is a science mission designed for the time domain astronomy, which is approved by the Chinese Academy of Sciences (CAS) in 2017 and is to be launched in 2023 with a duration time of more than 3 years. The Follow-up X-ray Telescope (FXT) is an important payload onboard EP, which employs the Wolter I focusing mirror as the X-ray collection unit and the PNCCD as the focal plane detector. The Phase C study has been finished in 2021. During the Phase C, the structural and thermal model (STM) of the mirror assembly of FXT, provided by the European Space Agency (ESA), a mirror assembly developed by the Institute of High Energy Physics (IHEP), a qualification model (QM) PNCCD and other components, are integrated and tested in IHEP. All optical performances meet the goal requirement of EP, such as the field of view of 60 arcmins, the angular resolution of less than 30 arcsec HEW on-axis, and the focal length of ab. 1600 mm. After that, the FXT is assembled, integrated, and tested on the EP satellite platform. Furthermore, these performances are not changed after the mechanical and thermal tests on the spacecraft platform.</p></div>","PeriodicalId":551,"journal":{"name":"Experimental Astronomy","volume":"55 3","pages":"625 - 637"},"PeriodicalIF":2.7000,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10686-022-09870-9.pdf","citationCount":"1","resultStr":"{\"title\":\"Design and testing of the Optics for FXT onboard EP satellite\",\"authors\":\"Yanji Yang, Yusa Wang, Dawei Han, Juan Wang, Weiwei Cui, Yuxuan Zhu, Min Cong, Jia Ma, Zijian Zhao, Dongjie Hou, Xiongtao Yang, Can Chen, Bing Lu, He Lv, Wenxin Sun, Jiawei Zhang, Ke Yu, Shaohuai Wang, Dongxu Liu, Qian Zhang, Xiyan Bi, Fangjun Lu, Peter Friedrich, Josef Eder, Katinka Hartmann, Vadim Burwitz, Arnoud Keereman, Andrea Santovincenzo, Dervis Vernani, Giovanni Bianucci, Giuseppe Valsecch, Lizhi Sheng, Yongqing Yan, Pengfei Qiang, Bo Wang, Langping Wang, Dianlong Wang, Fei Ding, Lei Wang, Junsheng Cheng, Yong Chen\",\"doi\":\"10.1007/s10686-022-09870-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The Einstein Probe (EP) mission is a science mission designed for the time domain astronomy, which is approved by the Chinese Academy of Sciences (CAS) in 2017 and is to be launched in 2023 with a duration time of more than 3 years. The Follow-up X-ray Telescope (FXT) is an important payload onboard EP, which employs the Wolter I focusing mirror as the X-ray collection unit and the PNCCD as the focal plane detector. The Phase C study has been finished in 2021. During the Phase C, the structural and thermal model (STM) of the mirror assembly of FXT, provided by the European Space Agency (ESA), a mirror assembly developed by the Institute of High Energy Physics (IHEP), a qualification model (QM) PNCCD and other components, are integrated and tested in IHEP. All optical performances meet the goal requirement of EP, such as the field of view of 60 arcmins, the angular resolution of less than 30 arcsec HEW on-axis, and the focal length of ab. 1600 mm. After that, the FXT is assembled, integrated, and tested on the EP satellite platform. 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Design and testing of the Optics for FXT onboard EP satellite
The Einstein Probe (EP) mission is a science mission designed for the time domain astronomy, which is approved by the Chinese Academy of Sciences (CAS) in 2017 and is to be launched in 2023 with a duration time of more than 3 years. The Follow-up X-ray Telescope (FXT) is an important payload onboard EP, which employs the Wolter I focusing mirror as the X-ray collection unit and the PNCCD as the focal plane detector. The Phase C study has been finished in 2021. During the Phase C, the structural and thermal model (STM) of the mirror assembly of FXT, provided by the European Space Agency (ESA), a mirror assembly developed by the Institute of High Energy Physics (IHEP), a qualification model (QM) PNCCD and other components, are integrated and tested in IHEP. All optical performances meet the goal requirement of EP, such as the field of view of 60 arcmins, the angular resolution of less than 30 arcsec HEW on-axis, and the focal length of ab. 1600 mm. After that, the FXT is assembled, integrated, and tested on the EP satellite platform. Furthermore, these performances are not changed after the mechanical and thermal tests on the spacecraft platform.
期刊介绍：
Many new instruments for observing astronomical objects at a variety of wavelengths have been and are continually being developed. Furthermore, a vast amount of effort is being put into the development of new techniques for data analysis in order to cope with great streams of data collected by these instruments.
Experimental Astronomy acts as a medium for the publication of papers of contemporary scientific interest on astrophysical instrumentation and methods necessary for the conduct of astronomy at all wavelength fields.
Experimental Astronomy publishes full-length articles, research letters and reviews on developments in detection techniques, instruments, and data analysis and image processing techniques. Occasional special issues are published, giving an in-depth presentation of the instrumentation and/or analysis connected with specific projects, such as satellite experiments or ground-based telescopes, or of specialized techniques.
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