HPGe and Scintillation Detectors Comparisons on Waste Drums Radioactivity Measurement

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DOI: 10.4236/jamp.2016.48154    1,396 Downloads   2,055 Views  

ABSTRACT

Two measurement systems, one being comprised of three HPGe detectors and the other being a 4π measurement system of the assembly of 10 sets of scintillation detectors, were compared for their measurement performance in operations of radioactive waste drum radioactivity measurement and clearance and release operation of decommissioning. The system features of the former were high costs, capable of identifying radionuclides, a measurement time of about 1000 sec. The system features of the latter were high sensibility, capable of identifying hotspots, a measurement time of about 100 sec. Various comparisons were made for the differences of the two systems on reference drums, whole-drum homogeneous and non-homogeneous metal drums and non-metal drums, whole-drums of different filling rates. The aim was to compare the differences of the two measurement systems in measuring radioactivity of critical radionuclides of 137Cs, 54Mn and 60Co.

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Yeh, C. , Huang, W. , Yuan, M. and Lee, H. (2016) HPGe and Scintillation Detectors Comparisons on Waste Drums Radioactivity Measurement. Journal of Applied Mathematics and Physics, 4, 1482-1487. doi: 10.4236/jamp.2016.48154.
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