Assessment of 99mTc 99Mo Dose Calibrator Performance For Nuclear Medicine Department In Al Nelein Diagnostic Center

Abstract

Nuclear medicine uses many different radioactive isotopes for radiation diagnostics studies and for therapy. The amount of radioactivity has to be determined exactly before it is applied to a patient. 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 treat diseases. This study was carried out to assess the performance of dose calibrator which is used in nuclear medicine department in Elnielin Medical Diagnostic Center (Khartoum state). The study period was form July 2014 to February 2015. Four quality control tests were carried out using standard radionuclide, 137Cs . The tests included accuracy, constancy, linearity and geometry. All results that were obtained from the study were compared with the international standard (±5%) and the results showed that the dose calibrator under the study is of good performance and there is no need for any correction tables or factors or maintenance for the time being.