Influence of structure defects of microchannel-plate-based x-ray optics on imaging performance

Jiao Lian; Zhenyu Zhou; Lin Mei; Xianmin Wu; Sanzhao Wang; Chang Liu; Chen Wang; Yuechong Feng; Xian Zhang; Hui Liu

doi:10.1117/12.2579819

5 November 2020 Influence of structure defects of microchannel-plate-based x-ray optics on imaging performance

Jiao Lian, Zhenyu Zhou, Lin Mei, Xianmin Wu, Sanzhao Wang, Chang Liu, Chen Wang, Yuechong Feng, Xian Zhang, Hui Liu

Proceedings Volume 11570, AOPC 2020: Telescopes, Space Optics, and Instrumentation; 115700I (2020) https://doi.org/10.1117/12.2579819
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

The microchannel-plate-based x-ray optics is a spherical crown containing millions of square microchannels, reflecting the small incident angle light at a certain angle through the inner wall of the channels. Structure defects may exist in the square microchannel array. In this paper, the effects of structure defects on the imaging performance were studied through simulation and MPO preparation experiment. The structure defects involved in the paper include two types, chamfered channels and tilting channels. The experimental results are consistent with the simulation images, proving that the simulations are correct. The results show that the imaging of MPO with standard square channels array is a symmetrical cross. The presence of chamfers in corner of the channels results in a weak secondary small cross in the 45° direction of the obvious cross. For the case that the channels are tilted slightly, the center of the cross deviates from the imaging center, and the cross becomes an asymmetric cross. This study provides a theoretical guidance for precise control of array structures in the preparation of MPO.

Citation Download Citation

Jiao Lian, Zhenyu Zhou, Lin Mei, Xianmin Wu, Sanzhao Wang, Chang Liu, Chen Wang, Yuechong Feng, Xian Zhang, and Hui Liu "Influence of structure defects of microchannel-plate-based x-ray optics on imaging performance", Proc. SPIE 11570, AOPC 2020: Telescopes, Space Optics, and Instrumentation, 115700I (5 November 2020); https://doi.org/10.1117/12.2579819

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