Title of article
On the efficiency calibration of a drum waste assay system
Author/Authors
Dinescu، نويسنده , , L. and Vata، نويسنده , , I. L. Cazan، نويسنده , , I.L. and Macrin، نويسنده , , R. and Caragheorgheopol، نويسنده , , Gh. and Rotarescu، نويسنده , , Gh.، نويسنده ,
Pages
6
From page
661
To page
666
Abstract
The efficiency calibration of a gamma spectroscopy waste assay system, constructed by IFIN-HH, was performed. The calibration technique was based on the assumption of a uniform distribution of the source activity in the drum and also a uniform sample matrix. A collimated detector (HPGe—20% relative efficiency) placed at 30 cm from the drum was used. The detection limit for 137Cs and 60Co is approximately 45 Bq/kg for a sample of about 400 kg and a counting time of 10 min. A total measurement uncertainty of −70% to +40% was estimated.
Keywords
radioactive waste , efficiency calibration , measurement uncertainty , gamma spectroscopy , detection limits
Journal title
Astroparticle Physics
Record number
2020134
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