Physics Contributions Evaluation of interpolation methods for TG-43 dosimetric parameters based on comparison with Monte Carlo data for high-energy brachytherapy sources

The aim of this work was to determine dose distributions for high-energy brachytherapy sources at spatial locations not included in the radial dose function g L (r) and 2D anisotropy function F(r,) table entries for radial distance r and polar angle . The objectives of this study are as follows: 1) to evaluate interpolation methods in order to accurately derive g L (r) and F(r,) from the reported data; 2) to determine the minimum number of entries in g L (r) and F(r,) that allow reproduction of dose distributions with sufficient accuracy.