Abstract:An improved characterization assay algorithm for the 400-L low-and intermediate-level radioactive waste drum was developed based on the segmented equivalent ring source. The improved method (IM) was validated by experiments on a 200-L waste drum. The assay errors are smaller than that of segmented gamma scanning (SGS). Numerical measurements were performed on a 400-L waste drum with two densities of 1.5 and 2.5 g/cc. Three common nuclides, Ba-133, Cs-137, and Co-60, were selected. The results show that the sou… Show more
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