Exploring the techniques for radiation leakage measurements of a telegamma machine

Abstract

Radiation leakage measurements in source ON/OFF position of a telegamma (teletherapy) unit head is required in various conditions to check the compliance of the unit head adequacy with the IEC standard ((IEC-60601-2-11 for telegamma). Radiation leakage measurements of a telegamma unit head in various conditions of measurements are easy except in the other than patient plane during source ON position. Authors have tried different approaches for this purpose. It is described that how the radiation leakage measurement can be performed without any specialized gadget designed for holding the detector at various desired location and also exploring to design & develop an specific QA gadget for easy and accurate measurement. © 2009 Springer-Verlag.