Advanced Physics for Brachytherapy 2018

Important implementation details

All calculation settings are preset! The user only selects between two options denoted as: standard and high accuracy levels. These options control: • the extent of each of the 4 regions in the multi-resolution Cartesian calculation grid used • the number of directions for 1sc and msc dose calculations. ➢ Material assignment is ROI based (TG- 186 + applicator materials) otherwise water is considered within the patient external contour ➢ ➢

Density can be uniform (ROI based) or HU based (ICRP 44/46 data + method in Knöös et al. Radiother. Oncol. 5, 337, 1986) Figures from a white paper by Elekta: ACE Advanced Collapsed cone Engine, B. van Veelen, Y. Ma, L. Beaulieu