Medical Physics · 1994 · 67 citations · 0 references
MedicineOncologyRadiation OncologyRadiation DetectionRadiation DosimetryRadiation MeasurementDose Uncertainty AnalysisExternal Beam DosimetryPhoton DosimetryRadiation Dose MeasurementRadiation TherapySmall Field DosimetryAbsorbed Dose UncertaintyDetectorsDose Perturbation AnalysisDose Uncertainty QuantificationExternal Beam Radiotherapy DosimetryPhoton Dose DistributionPhoton RadiotherapyPhoton Small Field Dosimetry
Uncertainties in dose measurements which may be considered acceptable for standard radiotherapy techniques may not be acceptable for radiosurgery or other precision radiotherapy techniques. One example of this type of uncertainty are the small perturbations to measured dose distributions which are caused by the use of diode detectors. In this article the effect of using diodes to measure small field penumbra is assessed and comments are made about diode orientation and diode construction.