TG-43U1 parameterization of elongated RadioCoil ¹⁰³Pd brachytherapy sources

Recently, to eliminate problems associated with seed type sources, RadioMed Corporation (Tyngsboro, MA) introduced RadioCoil ¹⁰³Pd sources for interstitial prostate implants. The RadioCoil sources are available in integral lengths ranging from 1.0 cm to 6.0 cm. In this project, dosimetric characteristics of these sources were determined following the TG-43U1 recommendations, with consideration of our recent publication on the evaluation of two-dimensional anisotropy function for elongated brachytherapy sources. Dosimetric parameters of these sources Were determined experimentally in Solid Water (Gammex RMI, Middleton, WI) and theoretically using Monte Carlo simulation in Solid Water and liquid water. Per the TG43U1 protocol, the consensus of these results would be used for their clinical applications.