高纵横比 X 射线多层菲涅尔区板的数值分析

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED

Laser and Particle Beams Pub Date : 2024-09-03 DOI:10.1017/lpb.2024.3

Lingyun Zhang, Yazeng Gao, Shuaiqiang Ming, Weier Lu, Yang Xia

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引用次数: 0

摘要

提出了一种计算高纵横比多层菲涅尔区板衍射效率的分区计算方法（PCM）。与传统理论相比，PCM 设计和评估菲涅尔区板（FZP）时更全面地考虑了材料对、所有区的宽度、厚度和 X 射线能量。通过将 PCM 得出的结果与复振幅叠加理论和耦合波理论的数值结果进行比较，对其进行了验证。PCM 满足了最外层区域宽度（drN）较小、厚度（t）较大的 FZP 的理论研究要求。将适当的数值分析与实验条件相结合，将为突破 X 射线显微镜的成像性能带来巨大潜力。

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Numerical analysis of X-ray multilayer Fresnel zone plates with high aspect ratios

A partition calculation method (PCM) for calculating the diffraction efficiency of multilayer Fresnel zone plate with high aspect ratio is proposed. In contrast to the traditional theory, PCM designs and evaluates Fresnel zone plate (FZP) considering material pairs, all zone widths, thicknesses and X-ray energy more completely. The results obtained through PCM are validated by comparing them with the complex amplitude superposition theory and coupled wave theory numerical results. The PCM satisfies the requirements of the theoretical investigation of FZP with small outermost zone width (drN) and large thickness (t). Combining proper numerical analysis with the experimental conditions will present a great potential to break through the imaging performance of X-ray microscopy.

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来源期刊

Laser and Particle Beams PHYSICS, APPLIED-

CiteScore

1.90

自引率

11.10%

发文量

审稿时长

1 months

期刊介绍： Laser and Particle Beams is an international journal which deals with basic physics issues of intense laser and particle beams, and the interaction of these beams with matter. Research on pulse power technology associated with beam generation is also of strong interest. Subjects covered include the physics of high energy densities; non-LTE phenomena; hot dense matter and related atomic, plasma and hydrodynamic physics and astrophysics; intense sources of coherent radiation; high current particle accelerators; beam-wave interaction; and pulsed power technology.