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PyRITE

PyRITE is a Python toolkit for Monte Carlo electron transport and X-ray emission in crystalline and amorphous solids. It models parametric X-ray radiation (PXR) and coherent bremsstrahlung (CBS) from crystals, alongside incoherent bremsstrahlung and characteristic X-ray emission.

Use the Python API for individual simulations or the command-line interface for resumable parameter sweeps. PyRITE includes material catalogs, configurable beams and detectors, trajectory export, and interactive analysis apps. CPU execution is included; NVIDIA GPU acceleration is available through the nvidia extra.

Install

Requires Python 3.13 or newer.

pip install pyrite-mc
pyrite tables fetch
pyrite run quickstart

Reference physics tables are downloaded separately by pyrite tables fetch. For NVIDIA GPUs, install pyrite-mc[nvidia] with compatible CUDA drivers. For pyrite.plots, install pyrite-mc[plots]; for the interactive marimo apps (pyrite app ...), install pyrite-mc[apps].

Research status and license

PyRITE is unvalidated research software under active development.

Distributed under the UCLA Academic Software License for educational or academic research use by academic or nonprofit researchers. Commercial use requires separate licensing.

Documentation · Source code

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