An accurate calculation of proton ranges in phantoms or detector geometries is crucial for decision making in proton therapy and proton imaging. To this end, several parameterizations of the range-energy relationship exist, with different levels of complexity and accuracy. In this study we compare the accuracy four different parameterizations models: Two analytical models derived from the Bethe equation, and two different interpolation schemes applied to range-energy tables. In conclusion, a spline interpolation scheme yields the highest reproduction accuracy, while the shape of the energy loss-curve is best reproduced with the differentiated Bragg-Kleeman equation.
@article{arxiv.1704.08854,
title = {Accuracy of parameterized proton range models; a comparison},
author = {Helge Egil Seime Pettersen and Mamdouh Chaar and Ilker Meric and Odd Harald Odland and Jarle Rambo Sølie and Dieter Röhrich},
journal= {arXiv preprint arXiv:1704.08854},
year = {2017}
}
Comments
5 pages, 3 figures, submitted to Radiation Physics and Chemistry