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A Track Membrane as a Phase Test Object for the X-Ray Spectrum Range
Technical Physics ( IF 0.7 ) Pub Date : 2020-11-18 , DOI: 10.1134/s1063784220110195
A. V. Mitrofanov , A. V. Popov , D. V. Prokopovich

Abstract

The problem of X-ray plane wave passage through a homogeneous polymeric film with a through hole with a submicron radius—which is part of a standard track membrane with cylindrical pores—is considered. The intensity of the transient wave is estimated using the scalar Leontovich–Fock parabolic equation. Its numerical solution yields the spatial distribution of the field amplitude and wavefront perturbation in the neighborhood of the pore and beyond it at a wavelength of 0.154 nm depending on the nanohole size and film thickness. It is shown that the track membrane, as well as its inorganic replica, can serve as a high-contrast precision test object for studying characteristics of a phase-contrast X-ray microscope and image recovery schemes.



中文翻译:

轨道膜作为X射线光谱范围的相位测试对象

摘要

考虑了X射线平面波穿过均质聚合物膜的问题,该均质聚合物膜具有一个具有亚微米半径的通孔-这是具有圆柱形孔的标准跟踪膜的一部分-。瞬态波的强度使用标量Leontovich-Fock抛物线方程估算。它的数值解取决于纳米孔的大小和膜厚,在波长为0.154 nm的孔附近和孔附近产生场振幅和波前扰动的空间分布。结果表明,跟踪膜及其无机复制品可以作为高对比度的精密测试对象,用于研究相差X射线显微镜的特性和图像恢复方案。

更新日期:2020-11-18
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