射线追踪模拟中波动的建模。

IF 2.5 3区 物理与天体物理
Journal of Synchrotron Radiation Pub Date : 2025-03-01 Epub Date: 2025-02-13 DOI:10.1107/S1600577525000190
Manuel Sanchez Del Rio, Juan Reyes-Herrera
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引用次数: 0

摘要

我们介绍了一个模型,可以准确地模拟从波动源辐射的射线追踪应用。它结合了与第四代同步加速器源相关的几个关键效应,如电子发射度、能量扩散和衍射限制光束尺寸。此代码已开发为SHADOW4的一部分,SHADOW4是广泛使用的SHADOW x射线光学光线跟踪程序的最新版本。该方法依赖于计算远场场分布,远场场分布决定了射线发散度。本文还讨论了现有电子能量扩散模型的集成。在源处采样的射线遵循远场辐射反向传播得出的尺寸分布。这些模型是详细的,并提供了几个例子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modelling undulators in ray tracing simulations.

We introduce a model that can accurately simulate radiation from undulator sources for ray tracing applications. It incorporates several key effects relevant to fourth-generation synchrotron sources, such as electron emittance, energy spread, and diffraction-limited beam size. This code has been developed as part of SHADOW4, the latest version of the widely used SHADOW X-ray optics ray tracing program. The approach relies on calculating the field distribution in the far field, which determines the ray divergences. The integration of existing models for electron energy spread is also addressed. Rays sampled at the source follow a size distribution derived by backpropagating the far-field radiation. These models are detailed, and several examples are provided.

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来源期刊
Journal of Synchrotron Radiation
Journal of Synchrotron Radiation INSTRUMENTS & INSTRUMENTATIONOPTICS&-OPTICS
CiteScore
5.60
自引率
12.00%
发文量
289
审稿时长
1 months
期刊介绍: Synchrotron radiation research is rapidly expanding with many new sources of radiation being created globally. Synchrotron radiation plays a leading role in pure science and in emerging technologies. The Journal of Synchrotron Radiation provides comprehensive coverage of the entire field of synchrotron radiation and free-electron laser research including instrumentation, theory, computing and scientific applications in areas such as biology, nanoscience and materials science. Rapid publication ensures an up-to-date information resource for scientists and engineers in the field.
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