TomoEQA: Dose verification for patient-specific quality assurance in helical tomotherapy using an exit detector

Purpose Existing phantom-less quality assurance (QA) platforms does not provide patient-specific QA for helical tomotherapy (HT). A new system, called TomoEQA, is presented to facilitate this using the leaf open time (LOT) of a binary multi-leaf collimator, as measured by an exit detector. Methods TomoEQA was designed to provide measurement-based LOTs based on detector data and to generate a new digital imaging and communication in medicine...