Physics Bucharest 2017

Collapsed Cone Algorithm (approximation !)

 Applies an angular discretisation of a parameterized kernel

 All energy inside a specified solid angle will be transported along a line  Collapse cones of equal direction into a common pipe (ie 128 in CMS)  During each step of the transport along a pipe, kernel energy is picked up and attenuated and deposited according to kernel parameters  Heterogeneities are accounted for by density scaling  Dose Calculation time ~MxN 3