Absorbed dose enhancement caused by gold particles in polymer gels

摘要

Previous studies showed that the presence of high-Z materials adjacent to soft tissues, when submitted to irradiation, enhances the absorbed dose in these tissues. This effect is due to the outscattering of photoelectrons from the high-Z materials. The aim of the present work was to measure the absorbed dose enhancement caused by the presence of different concentrations of gold particles in polymeric gels.