Electron dose distributions in inhomogeneous phantoms: a Monte Carlo study

摘要

Dose distributions in different models of inhomogeneous phantoms irradiated with 3-19 MeV electron beams have been calculated using DOSXYZnrc/EGSnrc Monte Carlo code. The rectilinear 3D voxel phantoms, relevant for radiotherapy and clinical dosimetry, were built from ICRU soft tissue equivalent material in which was inserted a single layer of bone, lung, air or Titanium. Significant interface effects have been found and qualitatively discussed.