Volume 37, Number C1, February 2002ECORAD 2001: The Radioecology - Ecotoxicology of Continental and Estuatine Environments
|Page(s)||C1-197 - C1-202|
|Published online||14 October 2009|
Micrometric particle's isotopics: An ultra-sensitive tool to detect nuclear plant discharge in the environment
CEA, Service Radioanalyses, Surveillance, Environnement, 91680 Bruyères-le-Châtel, France
To monitor the impact of a nuclear plant on the environment, common analytical methods consist of measuring the entire sample giving an average value for the element or for the isotopic ratios of this element for the "bulk" sample content. For uranium and plutonium, quantification or isotopic ratio measurements are routinely performed in bulk analysis with mass spectrometry (ICPMS or TIMS), with sensitive limits of detection. To assess a better understanding of pollution sources and to get more precise information from environmental samples, new methods based on single particle measurements of U and Pu isotopics were developed. We discuss the clean-room based process that gives isotopic signatures for micron-scaled grains released in the environment by nuclear facilities. It decreases the total sample size needed to be measured in common analytical methods, and allows us to eliminate naturally occurring uranium.
© EDP Sciences, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.