X-ray propagation through a kinoform lens

Author:

Sun Weihong,Wang Yong,Meng XiangyuORCID,Ren Junchao,Cao Jiefeng,Li Junqin,Tai Renzhong

Abstract

Combining geometric ray tracing and wave optics propagation, a new simulation model named LWF is established to calculate the full coherent X-ray propagation through a kinoform lens. The LWF model is used to analyze the X-ray propagation through long and short kinoform lenses and calculate the intensity distribution at the focal plane. When the aperture is large, the focal spot for the long kinoform lens is smaller than that for the short kinoform lens. Due to the use of the geometric ray-tracing method to calculate the beam propagation inside the kinoform lens, the LWF model takes a low number of transversal wavefront segments, i.e. a short time, to achieve high accuracy. The simulation times for the one-dimensional and two-dimensional LWF models are 0.025 s and 5.3 s, respectively, with a calculation error of less than 0.5%. The high efficiency and high accuracy make the LWF model a strong tool in designing kinoform lenses.

Funder

the Ministry of Science and Technology of China

the National Natural Science Foundation of China

Publisher

International Union of Crystallography (IUCr)

Subject

Instrumentation,Nuclear and High Energy Physics,Radiation

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Quadrifocal diffractive lenses based on the aperiodic silver mean sequence;The European Physical Journal D;2023-07

2. Partially coherent light propagation through a kinoform lens;Journal of Synchrotron Radiation;2023-03-22

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