用于测量多毛细聚焦光学透镜透射率的吸收器

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2021-01-15 DOI:10.1117/12.2584898

Haoran Wang, P. Zhou, Shuang Zhang, Zhiguo Liu

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引用次数: 1

摘要

采用吸收片、高计数率检测器和低功率微聚焦光源组合，在大能量范围内同时测量多毛细聚焦光学透镜的透射率。该方法将微聚焦源、吸收器和探测器串联在一起，在实际测量中具有很强的可操作性。添加铝吸收片后，8 keV以下的x射线被完全吸收，未测量透镜对8 keV以下x射线的透射效率。加入吸收片后，x射线的衰减不仅仅是指数衰减，还涉及到康普顿散射效应。

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Absorber for measuring the transmission of a polycapillary focusing optical lens

The combination of an absorption sheet, a high count rate detector and a low-power micro-focus source is used to simultaneously measure the transmission of the polycapillary focusing optical lens in a large energy range. This method places the micro-focus source, the absorber and the detector in a line, has highly operability in actual measurement. The X-rays below 8 keV were completely absorbed when adding the aluminum absorption sheet, and the transmission efficiency of the lens to X-rays below 8 keV was not measured. After the absorption sheet is added, the attenuation of the X-ray is not simply an exponential decay, but also the Compton scattering effect was involved.

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International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference

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