Measurement of Exposure Level during Technetium Generator Elusion at Nuclear Medicine lab

Abstract

The following experimental study has been carried out at radiation and Isotopes Center of Khartoum in Sudan, aiming to determine technetium generator time activity curve i.e. decay process, dose measurement received by the technologist hands, the exposure level relative to distance at hot lab and the cycle of waste management. With the usage of Geiger Muller survey detector the exposure level at different points, hands, and abdomen of the technologists have been measured, as well the radioactive waste management has been assessed and compared with IAEA recommendation. The obtained results showed that: The technetium generator has a time activity curve that fits the exponential equation of the following form: y = 886.2e-0.25x, where x refers to days and y refers to the relative activity. And the exposure level at different points distal from the generator could be calculated based on the following equation y = 24.26e-0.63x, where x refers to the point and y refers to the accumulative dose during generator working days. And the technologist’s hands received radiation dose of 34 (mCi/h) and the abdomen received a dose of 4.5 (mCi/h). And the waste management has been carried out based on the IAEA recommendation.