Dose‐response curve of EBT, EBT2, and EBT3 radiochromic films to synchrotron‐produced monochromatic x‐ray beams

Abstract

EBT and EBT2 film sensitivity showed strong energy dependence over an energy range of 25 keV-4 MV, although this dependence becomes weaker for larger doses. EBT3 film shows weak energy dependence, indicating that it would be a better dosimeter for kV x-ray beams where beam hardening effects can result in large changes in the effective energy.