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 ,
Issue Information :
روزنامه با شماره پیاپی سال 2002
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 :
measurement uncertainty , gamma spectroscopy , radioactive waste , efficiency calibration , detection limits
Journal title :
Nuclear Instruments and Methods in Physics Research Section A
Journal title :
Nuclear Instruments and Methods in Physics Research Section A
