Title: Accuracy of parameterized proton range models; a comparison,
Abstract: 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.