About OpenRPS

The Open Radiation Physics Suite (OpenRPS) is a suite of hobby projects created by Muhsin H. Younis (myounis@psu.edu), in July of 2025, and released in August of 2026. For the time being, it focuses on deterministic radiation transport calculations, primarily in the context of coupled X-ray-electron transport. To this end, it consists of a space-angle Boltzmann transport code Lionbolt, a multigroup cross section generating code NittanyPhysics, and a python package which can post-process results of both of these codes, Terpdose.

OpenRPS was built on the notes of a program previously created by the same author, ‘wiscobolt’ (2023). These notes are available in the now-archived repository of wiscobolt, https://github.com/mhyounis/wiscobolt, in the docs folder. These documents may be of interest to some, however, wiscobolt itself is very prone to breaking, and with the release of Lionbolt its use is not recommended.

License

OpenRPS^TM, Lionbolt, NittanyPhysics, and Terpdose are licensed under the GNU General Public License (GPL) 3.0. A copy of this license is included in each of these programs as well as the files of these docs, in LICENSE/gpl-3.0.txt.