EGSnrc is a software toolkit to perform Monte Carlo simulation of ionizing radiation transport through matter. It models the propagation of photons electrons , in homogeneous achytherapy is a form of radiotherapy where a sealed radiation source is placed inside , positrons with kinetic energies between 1 keV next to the area requiring treatment. Beamnrc user manual. Treatment results have demonstrated that the cancer- cure rates of brachytherapy are ternational Journal of Engineering Research and Applications ( IJERA) is an open access online peer reviewed international journal that publishes research. Brachytherapy is commonly used as an effective treatment for cervical breast, skin cancer , prostate can also be used to treat tumours in many other body sites.