Heterogeneous physical phantom for I-125 dose measurements and dose-to-medium determination

In this paper we present a further step in the implementation of a physical phantom designed to generate sets of “true” independent reference data as requested by TG-186, intending to address and mitigate the scarcity of experimental studies on brachytherapy (BT) validation in heterogeneous media. To achieve this, we incorporated well-known heterogeneous materials into the phantom in order to perform measu rements of 125I dose distribution. The work aims to experimentally validate Monte Carlo (MC) calculations based on MBDCA and determine the conversion factors from LiF response to absorbed dose in different media, using cavity theory.
Source: Brachytherapy - Category: Cancer & Oncology Authors: Source Type: research