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Abstract

An analysis procedure has been developed to detennine quantitatively traces of less than 10ppb of 244Cm in plutonium. The method combines two ratio measurements: a gamma-spectrometric measurement of the 241 Arn/Pu ratio made on the original plutonium sample, and an a!fha- spectrometric measurement of the 241 Arn/2 Cm ratio made after the separation of plutonium by means of extraction chromatography. The main purpose of the 244Cm analysis is to provide increased measurement assurance for the routine plutonium element assay performed by passive neutron coincidence counting. To this end the method has been designed:

i) For the detection and analysis of 244Cm at concentration levels where this isotope contributes less than 0.1% to the neutron signal from plutonium.

ii) For easy integration into existing robotized analytical procedures as utilized in the Euratom on-site laboratories. es.

Additional information

Authors: MORGENSTERN A, EC-JRC, Institute for Transuranium Elements (ITU), Karlsruhe (DE);APOSTOLIDIS C, EC-JRC, Institute for Transuranium Elements (ITU), Karlsruhe (DE);MAYER K, EC-JRC, Institute for Transuranium Elements (ITU), Karlsruhe (DE);OTTMAR H, EC-JRC, Institute for Transuranium Elements (ITU), Karlsruhe (DE)
Bibliographic Reference: An oral report given at: 23rd. ESARDA Annual Meeting of Safeguards and Nuclear Material Management. Held at: Bruges, (BE) 8-10 May (2001)
Record Number: 200013758 / Last updated on: 2001-09-18
Category: PUBLICATION
Original language: en
Available languages: en