Acta Optica Sinica, Volume. 41, Issue 6, 0634001(2021)

Fabrication and Performance Testing of Angel Lobster-Eye X-Ray Micro-Pore Optics

Ge Jin1, Chen Zhang2,3、*, Longhui Li1、**, Zhen Li1, Weimin Yuan2,3, Yan Gu1, Jian Wang1, Zhen Zhang1, Zhao Xu1, Bowen Jiang1, Yidai Liao1, Chao Wu1, Yufei Li1, Yan Guo1, Jianqiang Liu1, Zhixing Ling2,3, and Donghua Zhao2,3
Author Affiliations
  • 1North Night Vision Technology CO., LTD., Nanjing, Jiangsu 211106, China
  • 2Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
  • 3School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
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    Angel lobster-eye X-ray micro-pore optics (MPO) device, as a novel X-ray focusing device, has unique 4π stereoangle focusing ability and the optimal ratio of effective area to weight, thus being one of the most promising X-ray optical imaging systems. According to the structure characteristics of a lobster eye, a lobster eye optical device was successfully fabricated based on the fabrication technique of micro-channel plate square hole array in this paper. Then, the spherical surface accuracy and focusing characteristics of the device were tested by a Zygo interferometer, a fringe reflection profiler, and X-ray beam equipment. The test results show that the fabricated MPO device has a root-mean-square spherical surface accuracy of 0.72 μm, a peak-to-valley value of 2.27 μm, and a radius of curvature of about 752.3 mm. In addition, at a voltage of 2 kV and a current of 50 μA, the diameters of the full width at half maximum of the focal spots on the horizontal and vertical axes are approximately 0.39 mm and 0.42 mm, and the corresponding angular resolution is 3.65 arcmin and 3.93 arcmin, respectively.

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    Ge Jin, Chen Zhang, Longhui Li, Zhen Li, Weimin Yuan, Yan Gu, Jian Wang, Zhen Zhang, Zhao Xu, Bowen Jiang, Yidai Liao, Chao Wu, Yufei Li, Yan Guo, Jianqiang Liu, Zhixing Ling, Donghua Zhao. Fabrication and Performance Testing of Angel Lobster-Eye X-Ray Micro-Pore Optics[J]. Acta Optica Sinica, 2021, 41(6): 0634001

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    Paper Information

    Category: X-Ray Optics

    Received: Aug. 19, 2020

    Accepted: Nov. 2, 2020

    Published Online: Apr. 7, 2021

    The Author Email: Zhang Chen (chzhang@nao.cas.cn), Li Longhui (bnullh@163.com)

    DOI:10.3788/AOS202141.0634001

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