“…This coolant has a density of 1.72 g/cc and a lower heat capacity compared to water ( 5 ). The changes made to these sources have been shown to affect the source output and thus, it is important that each source model have its own characterization performed ( 6 ). The Axxent ® sources are used to deliver a localized dose of radiation to a patient, similar to a traditional, radioactive brachytherapy source, and are approved for a variety of applications, including the treatment of skin cancers, gynecological disease, and breast cavities ( 3, 7–10 ).…”