Wang Patrick Yuheng, Bazan da Silva Murilo, Held Georg, Wang Hongchang, Sawhney Kawal, Walters Andrew C
Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.
J Synchrotron Radiat. 2025 Jul 1;32(Pt 4):899-907. doi: 10.1107/S1600577525003200. Epub 2025 May 13.
The plane grating monochromator (PGM) is an optical instrument used in the majority of soft X-ray beamlines. Despite its ubiquity, the PGM efficiency can easily be overestimated, because the geometry of many modern PGMs can lead to unexpected blocking of the beam. We have developed a new workflow in Python for simulating PGMs, thus extending the capabilities of SHADOW3, a well established ray tracing software tool. We have used our method to simulate the flux on branch C of the Versatile Soft X-ray (VerSoX) beamline B07 at Diamond Light Source. The simulation results demonstrate qualitative agreement with the experimental measurements, confirming the robustness of the proposed methodology.
平面光栅单色仪（PGM）是大多数软X射线光束线中使用的一种光学仪器。尽管它无处不在，但PGM的效率很容易被高估，因为许多现代PGM的几何结构可能会导致光束意外受阻。我们已经在Python中开发了一种用于模拟PGM的新工作流程，从而扩展了SHADOW3（一个成熟的光线追踪软件工具）的功能。我们已经使用我们的方法来模拟钻石光源处通用软X射线（VerSoX）光束线B07的C分支上的通量。模拟结果表明与实验测量结果在定性上一致，证实了所提出方法的稳健性。
