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PGMweb: an online tool for visualizing the X-ray beam path through plane grating monochromators.

Patrick Yuheng Wang¹, Murilo Bazan da Silva¹, Matthew Hand¹

¹Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.

Journal of Synchrotron Radiation

|December 20, 2024

Summary

A new software tool, PGMweb, simulates X-ray beam paths through plane grating monochromators (PGMs). This accessible web application aids X-ray beamline design and scientific operations.

Keywords:

monochromator plane grating soft X-rays

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Area of Science:

Optics and instrumentation
Synchrotron radiation science
Computational physics

Background:

Plane grating monochromators (PGMs) are crucial for soft X-ray beamlines.
Accurate simulation of X-ray beam paths is essential for beamline design and optimization.
Existing tools may lack accessibility or comprehensive simulation capabilities.

Purpose of the Study:

To introduce PGMweb, a novel software tool for simulating X-ray beam paths through PGMs.
To provide a user-friendly, web-based application for X-ray beamline designers and scientists.
To facilitate the understanding and application of PGM optical schemes.

Main Methods:

Derivation of analytical expressions describing PGM geometry.
Implementation of these expressions in a Python library (pyplanemono).
Development of PGMweb as an installable, browser-based application.

Main Results:

PGMweb accurately computes and simulates X-ray beam paths.
The software incorporates a historical overview and focuses on collimated PGM schemes.
The tool is readily accessible via web browsers, requiring no installation.

Conclusions:

PGMweb offers a straightforward and accessible solution for PGM simulations.
The software supports the design and operation of soft X-ray beamlines.
This tool enhances the capabilities of researchers working with synchrotron and free-electron laser facilities.