Internal Dose Assessment in Patients Treated with I-131 using Whole Body Counter

T. M. Taha

Abstract: The current paper concerned on internal dose assessment of I-131 for some individuals in diagnostic and screening geometry respectively using whole body counter. It consists of scanning high purity germanium detector assembly with the lead shadow. Calibration of single high purity germanium detector for a wide range of energies for organ compartments such as thyroid, lung, upper and lower gastrointestinal tract have been investigated using transfer phantom in fixed diagnostic and screening positions respectively. The committed dose equivalents of I-131 in thyroid of some individuals were ranged from 10.80 0.76 to 60.60 0.52 Sv in screening position

Keywords: Dose assessment, I-131, Diagnostic, Screening, Transfer phantom