Abstract
Measurements were carried out for calibration and performance testing of a set of 10 electronic personal dosimeters (EPDs) at the Secondary Standard Dosimetry Laboratory of Sudan. Calibrations were carried out at three X-ray beam qualities described in ISO standard 4037 in addition to Cs-137 and Co-60 gamma ray beams. The experimental was performed with EPDs mounted on ICRU Slab phantom. X-ray and gamma-ray beams were characterized in terms of air kerma free-in-air which were converted to the known delivered personal dose equivalent, H-p(10) using appropriate the air kerma to personal dose equivalent conversion coefficients. Dosimeters tested showed excellent energy and angular response and relative error of indication within the recommended limit for photon energies from 65 key to 1.25 MeV. The study showed encouraging results for using electronic dosimeters in personal dosimetry. (C) 2010 Elsevier Ltd. All rights reserved.