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The Joint Research Centre (JRC) is the European Commission's science and knowledge service which employs scientists to carry out research in order to provide independent scientific advice and support to EU policy.
JRC-IRMM announces the forthcoming REIMEP*-22 interlaboratory comparison "U Age Dating - Determination of the production date of a uranium certified test sample" and invites laboratories to participate.
REIMEP-22 aims at determining the production date (i.e. the date of the last chemical separation) by measuring the amount ratio n(230Th)/n(234U) or activity ratio A(230Th)/A(234U), and, if desired, n(231Pa)/n(235U) or A(231Pa)/A(235U) in the certified test sample.
Participants in REIMEP-22 will receive a 20 mg and/or a 50 mg of low-enriched uranium sample (~ 4%) in solid uranyl-nitrate form. The 20 mg sample will be used for the spectrometric technique and the 50 mg sample – for the radiometric technique.
The participation fee for REIMEP-22 is € 1000 per sample (including sample dispatch). The deadline for registration is 1st October 2013.
For further information please go to the REIMEP-22 page.
*Regular European Interlaboratory Measurement Evaluation Programme (REIMEP)