the proper neutron shield to reduce the effect of neutrons on patients. For this propose, the MCNPX code was used and the 15 MV Siemens Primus linac, treatment room and patient's body were simulated. To have detailed model of patient, the ICRP male and female...

Introduction and Purpose: Photoneutron production is an important problem during patient radiotherapy with high-energy linear accelerators. In this study, the contribution of some components of accelerator head was ...

The importance of reducing the activation of NaI(Tl) detectors when used to detect g-rays in the presence of an intense neutron environment is discussed. Monte-Carlo calculations are used to design proper shielding for ...