An improved method for the non-destructive characterization of radioactive waste by gamma scanning

被引：33
|
作者：
Bai, Y. F. [1 ,2 ]
Mauerhofer, E. [1 ]
Wang, D. Z. [2 ]
Odoj, R. [1 ]
机构：
[1] Forschungszentrum Julich, Inst Energy Res, IEF Safety Res & Reactor Technol 6, D-52425 Julich, Germany
[2] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China
来源：
APPLIED RADIATION AND ISOTOPES | 2009年 / 67卷 / 10期
关键词：
Radioactive waste; Segmented gamma scanning; Isotope activity; Angular dependent count rate distribution;
D O I：
10.1016/j.apradiso.2009.05.017
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A method to improve the reliability and accuracy of activity results in segmented gamma scanning of radioactive waste drums with non-uniform isotope and matrix distribution has been developed. The improved method which is based on numerical simulations of the measured angular dependent count rate distribution during drum rotation in segmented gamma scanning has been validated through the measurement of Cs-137 and Co-60 activities in 13 real radioactive waste drums with heterogeneous activity and matrix distributions. The results were compared to that obtained for the conventional method assuming homogeneous activity and matrix distributions. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1897 / 1903
页数：7
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