18 July 2016 Development of x-ray multilayer telescope optics for XTP mission
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The X-ray Timing and Polarization (XTP) satellite is dedicated to study black hole, neutron star and magnetar and then get more information in the physics under extreme gravity, density and magnetism. With an effective area of about 1 square meter and angular resolution of 1 arcminute, XTP is expected to make the most sensitive temporal and polarization observations with good energy resolution in 1-30 keV. Large collecting areas are obtained by tightly nesting layers of grazing incidence mirrors in a conical approximation Wolter-I design. The segmented mirrors that form these layers are formed by thermally slumping glass substrates coated with depth-graded W/Si multilayers for enhanced reflectivity in higher energy region. In order to force the overall shape of the nominally cylindrical substrates to the appropriate conic form, an over-constraint method was used to assemble the mirrors to a telescope. We will present performance on the XTP optics and report the current status of the telescope.
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Zhengxiang Shen, Zhengxiang Shen, Xiaoqiang Wang, Xiaoqiang Wang, Kun Wang, Kun Wang, Bin Ma, Bin Ma, Qiushi Huang, Qiushi Huang, Zhong Zhang, Zhong Zhang, Haifeng Wang, Haifeng Wang, Ying Dai, Ying Dai, Pengfei He, Pengfei He, Zhanshan Wang, Zhanshan Wang, "Development of x-ray multilayer telescope optics for XTP mission", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 990520 (18 July 2016); doi: 10.1117/12.2233850; https://doi.org/10.1117/12.2233850


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