A Computer Program Development Method for Estimating of Entrance Skin Dose for some Individuals Undergoing X-ray Imaging

Physical parameters such as field size, half value layer, backscatter factor, dose output, focal film distance, focal skin distance, normal operating conditions were taken into consideration for calculating entrance skin dose for some patients in Umm Alquraa University Medical Center .It was compared with technique of Thermo-luminescence dosimeters. TLD technique characterized by high precision and reproducibility of dose measurement was checked. After exposure to constant dose from X-ray generator., 0.6 cc Ionization chamber was located at surface of water chest phantom that has dimensions of 40 cm x 40 cm x 20 cm and connected with farmer dose master. The obtained results were compared with the reference levels of International Atomic Energy Authority and other authors. It provides the easiest and cheapest technique that may be employed in any entrance skin dose measurement.constructed computer program