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  • Title: Results of the international Pu-2000 exercise for plutonium isotopic composition measurements.
    Author: Morel J, Bickel M, Hill C, Verbruggen A, ESARDA NDA-WG Members.
    Journal: Appl Radiat Isot; 2004; 60(2-4):607-14. PubMed ID: 14987712.
    Abstract:
    An international comparison for plutonium isotopic composition measurement, known as the Pu-2000 exercise, was organized by the ESARDA NDA-WG (European Safeguards Research and Development Association, Working Group on Techniques and Standards for Non-Destructive Assay). The aim of this comparison was to test X- and gamma-ray spectrometry methods over a large range of isotopic ratios. These methods are based on the complex analysis of several X- and gamma-rays in the KX region of the plutonium spectrum and also in the 120-700 keV energy range. The results obtained by the participants with their corresponding uncertainties are presented in this document and compared to the declared values. The main conclusions of the work are also given. No important bias due to an inadequate knowledge of the nuclear data for plutonium isotopes was observed.
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