A multi-center output factor intercomparison to uncover systematic inaccuracies in small field dosimetry

Phys Imaging Radiat Oncol. 2018 Mar 26:5:93-96. doi: 10.1016/j.phro.2018.03.007. eCollection 2018 Jan.

Abstract

Large uncertainties in output factor (OF) small fields dosimetry motivated multicentric studies. The focus of the study was the determination of the OFs, for different linacs and radiosurgery units, using new-generation detectors. Intercomparison studies between radiotherapy centers improved quality dosimetry practices. Results confirmed the effectiveness of the studies to uncover large systematic inaccuracies in small field dosimetry.

Keywords: Multicentric studies; Output factors; Small field dosimetry.