Energy dependence and dose response of Gafchromic EBT2 film over a wide range of photon, electron, and proton beam energies

Abstract

Since the Gafchromic film EBT has been recently replaced by the newer model EBT2, its characterization, especially energy dependence, has become critically important. The energy dependence of the dose response of Gafchromic EBT2 film is evaluated for a broad range of energies from different radiation sources used in radiation therapy.