Optical design and simulation of Einstein Probe satellite follow-up x-ray telescope

Yuxuan Zhu; Jingbin Lu; Yanji YangMin CongLizhi ShengPengfei QiangWeiwei CuiZiliang ZhangYusa WangDawei HanWei LiJuan WangJia HuoMaoshun LiXiaofan ZhaoNian YuZeyu SongJia MaZhonghua LvZijian ZhaoHao WangDongjie HouCan ChenTianxiang ChenXiongtao YangLaidan LuoBing LuJingjing XuYehai ChenYong Chen

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Optical design and simulation of Einstein Probe satellite follow-up x-ray telescope

机译：Optical design and simulation of Einstein Probe satellite follow-up x-ray telescope

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摘要

The Follow-up X-ray Telescope (FXT), a key payload onboard the Einstein Probe sallite (EP), is equipped with a Wolter-I x-ray focusing mirror system. We introduce the principle of such a mirror system and analyze the influence of the mirror gap in the multishell nested mirror of the FXT on the effective area, stray-light ratio, and vignetting. To ensure that no occlusion occurs within adjacent shells and minimize stray-light ratio, the size of the gap is set to a optimized value for corresponding shell. We finished a design of a 54-shell mirror system according to these results. The optical performance of the design was then simulated using a Monte Carlo algorithm and the ray-tracing principle. The simulation shows that the effective area is 414.5 ± 0.2 cm~2 at 1.25 keV (considering the spider), and the field of view is 64 arcmin in diameter. These parameters meet the optical requirements of the FXT.

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来源
《Optical Engineering》 |2021年第2期|025102-1-025102-10|共10页
作者
Yuxuan Zhu; Jingbin Lu; Yanji YangMin CongLizhi ShengPengfei QiangWeiwei CuiZiliang ZhangYusa WangDawei HanWei LiJuan WangJia HuoMaoshun LiXiaofan ZhaoNian YuZeyu SongJia MaZhonghua LvZijian ZhaoHao WangDongjie HouCan ChenTianxiang ChenXiongtao YangLaidan LuoBing LuJingjing XuYehai ChenYong Chen;
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作者单位

Key Lab. of Particle Astrophysics, Institute of High Energy Physics (China);

Innovation Academy for Microsatellites (China);

Jilin Univ. (China)State Key Lab. of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (China);

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
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Optical design and simulation of Einstein Probe satellite follow-up x-ray telescope

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