ABSTRACT
Electronic brachytherapy (eBx) is a technological advancement for brachytherapy, during which a microminiature, watercooled 50-kV x-ray source is used to deliver the radiation. Only recently introduced as a commercially available system, the Axxent Electronic Brachytherapy System (Xo, Inc., Sunnyvale, CA) has been relatively unstudied thus far in the clinical setting and is unfamiliar to many medical physicists and radiation oncologists. Because this modality provides a high dose rate treatment using an x-ray source, eBx is unregulated by the Nuclear Regulatory Commission. Consequently, no modality-specic QA procedures have been formulated by either the Nuclear Regulatory Commission or the American Association of Physicists in Medicine (AAPM). e AAPM has formed the Task Group 182 to address this and other relevant eBx issues.
