PGMweb: A Plane Grating Monochromator Simulation Tool

Welcome to PGMweb, a web-based simulation tool for plane grating monochromators (PGM) frequently used in soft X-ray synchrotron beamlines and at free-electron lasers. This simple tool is designed to allow users to quickly visualise the geometry of a PGM given a set of parameters. If you find this tool useful, please consider citing the following paper:

Wang, P. Y., Bazan da Silva, M., Hand, M., Wang, H., Chang, P., Beilsten-Edmands, V., Kim, T. K., Lee, T.-L., Sawhney, K. & Walters, A. C. (2025). Journal of Synchrotron Radiation 32(1), 261-268. https://doi.org/10.1107/S1600577524011603

Depending on your browser and internet connection, it may take up to a minute to load in the first instance. For best performance, we recommend using the latest version of Google Chrome or Mozilla Firefox on a desktop or laptop computer.

If you fail to see the full axes range, or fail to see the entire control panel, it is likely a scaling issue. This can be fixed by zooming out in your browser, commonly done with "Ctrl -".

For a short tutorial and documentation, please click here.
For the source code, please visit the GitHub repository.
For any questions or feedback, please visit the contact page.

This tool is provided as is and without warranty. It is available for free and open-source use under the MIT license.