Limitation of the segmented gamma scanning technique and an additional method for assay of radwaste drums

Tóm tắt

In this paper the limitation of the Segmented Gamma Scanning technique is shown, while an additional method available to determine the activity of the barrels of radioactive waste has been proposed. The assumption of this technique is that the sample activity is concentrate as a point source, and the sample matrix is uniform in a segment. Calculation results show that the accuracy of this technique is better than that of the traditional Segmented Gamma Scanning technique for most cases where the mixture of activity and matrix is non-uniform.