基于锥形衍射的柱头平场x射线摄谱仪的概念

IF 0.9 4区工程技术 Q3 Engineering

Quantum Electronics Pub Date : 2022-05-01 DOI:10.1070/QEL18048

A. O. Kolesnikov, E. Ragozin, A. Shatokhin

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引用次数: 0

摘要

解析计算了平面场柱头x射线光谱仪的光学方案，该方案包括一个掠入射聚焦镜和一个凹扇形衍射光栅，该光栅与反射镜交叉并以锥形衍射方案安装。采用数值射线追迹法获得了点单色光源的光谱图像，证实了1 × 4 μm水平的高质量光谱图像。假设使用小的掠射入射角结合多层反射涂层的应用，包括非周期涂层，将有可能将污名谱仪的工作光谱范围扩展到“tender”(χ ω≈1.5 - 6 keV) x射线范围。

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The concept of a stigmatic flat-field X-ray spectrograph based on conical diffraction

The optical scheme of a flat-field stigmatic X-ray spectrograph, which includes a grazing-incidence focusing mirror and a concave fan-type diffraction grating crossed with respect to the mirror and mounted in a conical diffraction scheme, is calculated analytically. Spectral images of a point monochromatic source are obtained by numerical ray tracing, confirming the high quality of spectral images at a level of 1 × 4 μm. It is assumed that the use of small grazing incidence angles in combination with the application of multilayer reflective coatings, including aperiodic ones, will make it possible to extend the working spectral range of the stigmatic spectrograph to the region of the ‘tender’ (ℏω ≈ 1.5 – 6 keV) X-ray range.

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来源期刊

Quantum Electronics 工程技术-工程：电子与电气

CiteScore

3.00

自引率

11.10%

发文量

审稿时长

3-6 weeks

期刊介绍： Quantum Electronics covers the following principal headings Letters Lasers Active Media Interaction of Laser Radiation with Matter Laser Plasma Nonlinear Optical Phenomena Nanotechnologies Quantum Electronic Devices Optical Processing of Information Fiber and Integrated Optics Laser Applications in Technology and Metrology, Biology and Medicine.