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Proceedings Paper

Design of hard x-ray focusing telescope with a large field-of-view
Author(s): Shenghao Chen; Baozhong Mu; Shuang Ma; Zhanshan Wang
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Paper Abstract

X-ray Timing and Polarization (XTP) satellite with focusing optics and advanced detectors will study Black Hole, Neutron Star, Quark Star and the physics under extreme gravity, density and magnetism. XTP is about to make the most sensitive temporal and polarization observations with good energy resolution in 1-30 keV. We present the design of XTP Telescope with a larger field of view in this paper. The initial structure design of nested conical Wolter-I telescope in X-rays is determined with the focal length f=4.5m, mirror length L=100mm, thickness t=0.3mm, inner and outer diameter Din-out=100-450mm. To optimize the structure parameters, a self-complied Matlab software is used to maximize the center geometrical collecting are. A constant deviation gap between every two mirrors is introduced, and we calculate geometrical area in on-axis and off-axis. Balancing the performance of the telescope, the final gap value is 0.06 mm. The geometrical collecting area of on-axis decreased by 5%, the average geometrical area of off-axis is increased about 1.7% and the field of view is improved from 22’ to 24’, meanwhile, number of mirrors and total weight of mirrors also are decreased by 5.8%, 5.3% respectively.

Paper Details

Date Published: 6 November 2014
PDF: 11 pages
Proc. SPIE 9272, Optical Design and Testing VI, 92721R (6 November 2014); doi: 10.1117/12.2073546
Show Author Affiliations
Shenghao Chen, Tongji Univ. (China)
Baozhong Mu, Tongji Univ. (China)
Shuang Ma, Tongji Univ. (China)
Zhanshan Wang, Tongji Univ. (China)

Published in SPIE Proceedings Vol. 9272:
Optical Design and Testing VI
Yongtian Wang; Chunlei Du; José Sasián; Kimio Tatsuno, Editor(s)

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