Analysis of dosimetric characteristics of flattening filter free photon beams and comparison with regular beams

Abstract

Basic dosimetric properties of 6 MV and 10 MV photon beams from a linear accelerator operating without the flattening filter have been analyzed. These include dose rate data, depth dose dependencies, lateral profiles and output factor in a water phantom and transmission factors of a multi-leaf collimator. The data are compared with dosimetric data for the flattened beams (FB).