ERVIS TELHAJ
KEYWORDS : Algorithm, electron transport, PDD, electron density.
Abstract
The dose calculation of electron and photon transport in matter is critical for application like radiation therapy, where accurate dose is delivery to cancerous tissues, while spearing healthy tissues is essential. The electron transport is indirectly modeled through the convolution of kernels that represent the spread of dose from photons. The approach is less detailed compared to direct electron modeling. The algorithm typically handles secondary production from photons interaction. The electron algorithm is a fast implementation method for the calculation of the dose distribution from high-energy electron beam. The dose distribution within the body is closely related to the electron density of the tissues, which can be represented using an electron density phantom, absolute percent depth dose (PDD), dose at depth max and depth of reference.