一种利用伽马能谱进行无损检测的放射性废物桶监测仪原型。
A prototype of radioactive waste drum monitor by non-destructive assays using gamma spectrometry.
作者信息
Thanh Tran Thien, Trang Hoang Thi Kieu, Chuong Huynh Dinh, Nguyen Vo Hoang, Tran Le Bao, Tam Hoang Duc, Tao Chau Van
机构信息
Department of Nuclear Physics, Faculty of Physics and Engineering Physics, VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam; Nuclear Technique Laboratory, VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam.
Department of Nuclear Physics, Faculty of Physics and Engineering Physics, VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam; Nuclear Technique Laboratory, VNUHCM-University of Science, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam.
出版信息
Appl Radiat Isot. 2016 Mar;109:544-546. doi: 10.1016/j.apradiso.2015.11.037. Epub 2015 Nov 29.
In this work, segmented gamma scanning and the gamma emission tomography were used to locate unknown sources in a radioactive waste drum. The simulated detector response function and full energy peak efficiency are compared to corresponding experimental data and show about 5.3% difference for an energy ranging from 81keV to 1332.5keV for point sources. Computation of the corresponding activity is in good agreement with the true values.
在这项工作中，采用分段伽马扫描和伽马发射断层扫描来定位放射性废物桶中的未知源。将模拟探测器响应函数和全能峰效率与相应的实验数据进行比较，对于能量范围在81keV至1332.5keV的点源，两者显示出约5.3%的差异。相应活度的计算与真实值吻合良好。
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