pyRadMC
Copyright 2026 Niklas Wahl and the pyRadMC contributors

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
file except in compliance with the License. You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under
the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the specific language governing
permissions and limitations under the License.

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Third-party dependencies
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pyRadMC depends on, but does not redistribute, the following. Each is obtained by the
user through their own package installation and remains under its own licence.

    NumPy                BSD-3-Clause         https://numpy.org
    SciPy                BSD-3-Clause         https://scipy.org
    NVIDIA Warp          Apache-2.0           https://github.com/NVIDIA/warp
    SimpleITK            Apache-2.0           https://simpleitk.org
    Matplotlib           PSF-based (BSD-like) https://matplotlib.org

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Scientific data
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pyRadMC ships NO evaluated cross-section libraries.

The tabulated backend is compiled by the user from the IAEA EPICS 2023 evaluations
(EPDL2023.ALL and EEDL2023.ALL), downloaded at build time from

    https://www-nds.iaea.org/epics/ENDF2023/

Those files are the IAEA's; their terms of use apply to the user who obtains them and
are not granted by this licence. The compiled tables produced from them are derived
data and are likewise not distributed here.

Published reference data reproduced in the source — transcribed values, fitted
parameters and formulations, each cited at its point of use — includes:

    NIST XCOM photon attenuation (Hubbell & Seltzer, NISTIR 5632, doi:10.18434/T4D01F)
    NIST ESTAR electron stopping powers and CSDA ranges
    ICRU Report 37 collision stopping-power formulation
    ICRP/ICRU reference tissue compositions
    Sternheimer, Berger & Seltzer density-effect coefficients (SBS 1984)
    IUPAC 2021 standard atomic weights (doi:10.1515/pac-2019-0603)
    Klein & Nishina (1929), doi:10.1007/BF01366453
    Motz, Olsen & Koch (1969), doi:10.1103/RevModPhys.41.581
    Eyges (1948), doi:10.1103/PhysRev.74.1534
    Woodcock et al. (1965), ANL-7050
    Siebers et al. (2000), restricted stopping-power ratios for dose-to-water
    Ali & Rogers (2012), analytic MV photon spectrum parameterization

The EGSnrc depth-dose benchmark under tests/validation/data/ was generated by the
maintainer with EGSnrc and is released under this project's licence; see that
directory's README.md for its provenance and the metadata it lacks.
