Multilayer coating of XTP telescope mirrors

Li Jiang; Runze Qi; Yang Yang; Qiushi Huang; Zhong Zhang; Yuhong Bai; Zhanshan Wang

doi:10.1117/12.2233729

18 July 2016 Multilayer coating of XTP telescope mirrors

Li Jiang, Runze Qi, Yang Yang, Qiushi Huang, Zhong Zhang, Yuhong Bai, Zhanshan Wang

Proceedings Volume 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray; 99056Q (2016) https://doi.org/10.1117/12.2233729
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We present the coating of depth-graded W/Si multilayers on the thin glass substrates for telescopes in X-ray timing and polarization mission. The multilayer consists of several hundred bilayers in an optimized graded power law design with stringent requirements on uniformity and interface width. We introduce the details of the planar magnetron sputtering facility including the optimization of the deposition process. Results are presented on the uniformity, interface width, reflectivity and the fabrication of a 200-bilayers depth graded multilayer working at hard X-ray energies.

Citation Download Citation

Li Jiang, Runze Qi, Yang Yang, Qiushi Huang, Zhong Zhang, Yuhong Bai, and Zhanshan Wang "Multilayer coating of XTP telescope mirrors", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99056Q (18 July 2016); https://doi.org/10.1117/12.2233729

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