Primary activity standardization of super(57)Co by sum-peak method

The sum-peak method was applied to standardize a super(57)Co solution within the framework of an international comparison organized by International Atomic Energy Agency, in 2008, aimed toward international traceability of activity measurements. A planar germanium detector was used with the sources...

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Bibliographic Details
Published in:Applied radiation and isotopes 2009-10, Vol.67 (10), p.1887-1891
Main Authors: Iwahara, A, Poledna, R, Da Silva, CJ, Tauhata, L
Format: Article
Language:English
Online Access:Get full text
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Summary:The sum-peak method was applied to standardize a super(57)Co solution within the framework of an international comparison organized by International Atomic Energy Agency, in 2008, aimed toward international traceability of activity measurements. A planar germanium detector was used with the sources placed on top of the detector for activity determination measurements. An analytical expression for accidental summing correction was derived and the effect of the germanium characteristic KX-ray escape peak of 112 keV was taken into account. The standard uncertainty associated to the activity concentration value was 0.37% and the result was compared with other measurement methods.
ISSN:0969-8043
DOI:10.1016/j.apradiso.2009.05.004