Assessment of Dose Calibrator Performance in the Nuclear Medicine Department of Elnilein Medical Diagnostic Centre

Abstract

Nuclear medicine uses many different radioactive isotopes for radiation diagnostic studies and for therapy . The amounts of radioactivity has to be determined exactly before it is applied to patients. The dose calibrator has to measure the radioactivity of gamma and beta with different energies precisely for high quality imaging and for applying the right amount of radiation to have good images which give good diagnosis and effective treatment of diseases This study was carried out to assess the performance of dose calibrator that is working in Nuclear medicine department of Elnilein Medical Diagnostic Center in Khartoum State. Four quality control tests were carried out using two standard radionuclides Cs137 and Co57. Tests included accuracy linearity, constancy and geometry. All results that were obtained from the study were compared with the international standard (± 10%) and results showed that the dose calibrator has good performance and there is no need for any correction tables or factors or maintenance for the time being.