Design of hard x-ray focusing telescope with a large field-of-view

Shenghao Chen; Baozhong Mu; Shuang Ma; Zhanshan Wang

doi:10.1117/12.2073546

6 November 2014 Design of hard x-ray focusing telescope with a large field-of-view

Shenghao Chen, Baozhong Mu, Shuang Ma, Zhanshan Wang

Proceedings Volume 9272, Optical Design and Testing VI; 92721R (2014) https://doi.org/10.1117/12.2073546
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

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 D_in-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.

Citation Download Citation

Shenghao Chen, Baozhong Mu, Shuang Ma, and Zhanshan Wang "Design of hard x-ray focusing telescope with a large field-of-view", Proc. SPIE 9272, Optical Design and Testing VI, 92721R (6 November 2014); https://doi.org/10.1117/12.2073546

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KEYWORDS

Mirrors

X-ray telescopes

Telescopes

X-rays

Optical instrument design

Hard x-rays

Off axis mirrors

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