Accuracy of parameterized proton range models; a comparison
  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.
