Assessment of Dose Calibrators Performance in Nuclear Medicine Department in Sudan

This study managed to evaluate the performance of the dose calibrators which work in nuclear medicine departments in Sudanese centers by using four quality control tests accuracy, constancy, linearity and geometry. These four tests was performed for two dose calibrators, Capintec PTW CURIEMENTOR4 (RICK center), and Capintec CRC25R (Elnilein center) The results of the quality control tests revealed that the parameters that were traced for dose calibrators are within the limits of the International standards (±5%). It is essential to perform daily tests for background activity, constancy, and accuracy. A deviation from normal values of these parameters is the first sign of degradation of the dose calibrator. Regular QC should cover precision, accuracy, linearity, and geometry of instrument, according to IAEA standards, e.g. (IAEA TECDOC-602 and 1599), that will guarantee accuracy of the used patient’s radioactive doses and therefore proper practice of nuclear medicine diagnosis. According to descriptive analytical method, it is found that the NM centers generally have acceptable situation in terms of the QC measures for dose calibrator.