Analysis of absorbed dose in vital organs of radiation workers at industrial radioisotope department and radio-pharmaceutical production line (Tc-99m) with the use of RANDO Phantom and TLD method

Introduction: Analysis of absorbed dose in vital organs of radiation workers at Industrial Radioisotope Dept. and Radio-pharmaceutical production line (Tc-99m) with the use of RANDO phantom and TLD method. Materials and Methods: This article examines the experimental simulation method of Gamma-rays'- absorbed dose in μSv in the eye cornea, thyroid and testicles measured with the use of a RANDO phantom and the employment of TLD100H (Li:Mg:P:Cu) dosimeters and a model 4500 reader, made by Harshaw, an American manufacture. The simulation method was performed on pre-determined parts in both normal and emergency conditions. Results and Conclusion: The result of this research indicates that the level of absorbed dose in various body parts of radiation workers in ordinary work conditions in controlled areas is less than the allowable absorbed dose. Moreover, despite the fact that the irradiation level for the whole body and different body parts are being 10 times more in restricted and prohibited areas, the absorbed dose is also measured to be less than the allowable dose. However, number of incidences such as human error in charging the gamma cameras in Industrial radio isotope department can cause the whole body irradiation of a radiation worker to exceed the allowable dose of 20 msv per year.