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Quasi-parallel X-ray microbeam obtained using a parabolic monocapillary X-ray lens with an embedded square-shaped lead occluder

2020/01/14 by Peng Zhou, Zhou, Peng, Zhuxuan Duo +9
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Advanced Electron Microscopy Techniques and Applications #Advanced X-ray Imaging Techniques #Advancements in Photolithography Techniques #FOS: Physical sciences #Optics (physics.optics)

paper · pdf · doi:10.48550/arxiv.2001.04667

openalex publication_date 2020/01/14 · openalex created_date 2020/01/23 · openalex updated_date 2026/07/28

Abstract

A parabolic monocapillary X-ray lens (PMXRL) is designed to effectively constrain a laboratory point X-ray source into a parallel beam. A square-shaped lead occluder (SSLO) is used to block direct X-rays in the PMXRL. To design the PMXRL, we use Python to simulate the conic parameter (p = 0.001 mm) of the lens and then use a drawing machine to draw a corresponding lens (p = 0.000939 mm) with a total length of 60.8 mm. We place the SSLO at the lens inlet for optical testing. The results show that the controlled outgoing beam has a divergence of less than 0.4 mrad in the range of 15-45 mm of the lens outlet, which achieves excellent optical performance in X-ray imaging methodology. The design details are reported in this paper.

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