Th. Anh et Tq. Dung, Evaluation of performance of gamma tomographic technique for correcting lump effect in radioactive waste assay, ANN NUC ENG, 28(3), 2001, pp. 265-273
A model for estimation of the lump effect, especially for plutonium, in the
tomographic technique is given, based on simulating a measurement system t
o assay radioactive waste drums. The results show that the tomographic tech
nique can be successfully used for measuring heterogeneous waste drums cont
aining lumps. When the dimensions of a pixel are chosen equal to 1 cm, the
errors are not larger than 27% for a lump of plutonium metal. (C) 2000 Else
vier Science Ltd. All rights reserved.