Wang Patrick Yuheng, Bazan da Silva Murilo, Hand Matthew, Wang Hongchang, Chang Peter, Beilsten-Edmands Victoria, Kim Timur K, Lee Tien Lin, Sawhney Kawal, Walters Andrew C
Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.
J Synchrotron Radiat. 2025 Jan 1;32(Pt 1):261-268. doi: 10.1107/S1600577524011603.
We present here a newly developed software tool (called PGMweb) for computing and simulating the X-ray beam path through a plane grating monochromator (PGM), a key component in soft X-ray beamlines at modern synchrotron and free-electron laser facilities. A historical overview of the development of PGMs is presented, with special attention dedicated to the collimated PGM optical scheme found at several X-ray facilities worldwide. The analytical expressions that fully describe the geometry of a PGM are derived and have been implemented as functions in a Python library (pyplanemono). PGMweb is distributed as a web-based application that can be run in any modern browser without installation, making its use very straightforward for X-ray beamline designers and beamline scientists alike.
我们在此展示一款新开发的软件工具（称为PGMweb），用于计算和模拟X射线束通过平面光栅单色仪（PGM）的光路，PGM是现代同步加速器和自由电子激光设施软X射线束线中的关键组件。本文介绍了PGM的发展历史概况，特别关注了全球多个X射线设施中发现的准直PGM光学方案。推导出了完全描述PGM几何形状的解析表达式，并已作为函数在Python库（pyplanemono）中实现。PGMweb作为基于网络的应用程序进行分发，无需安装即可在任何现代浏览器中运行，这使得X射线束线设计者和束线科学家都能非常方便地使用它。
