Christopher Kehayias, PhD

Verification of source dwell positions in HDR ring applicators is critical due to variability introduced by source wire slack. Conventional autoradiographic film methods are often limited by setup uncertainties—such as manual stem marking—and typically requir...

Non-breathing physiological motions of abdominal organs at risk (OARs) are insufficiently characterized to support understanding of their dosimetric impact and possible need for monitoring. The dynamics of such motions were characterized in this investigation.