Implementation trials of high performance trace analysis/environmental sampling (HPTA/ES) in uranium centrifuge enrichment plants
Field trials have demonstrated that the analysis of particles on swipes obtained from inside nuclear installations provides clear signatures of past operations in that installation. This can offer a valuable tool for gaining assurance regarding the compliance with declared activities and the absence of undeclared activities (eg enrichment, reprocessing, and reactor operation) at such sites. This method, known as environmental sampling (ES) or high performance trace analysis (HPTA), is at present being evaluated by the Euratom Safeguards Directorate (ESD) in order to assess its possible use in nuclear installations within the European Union. The Euratom Safeguards Directorate has therefore performed implementation trials involving the collection of particles by the swipe sampling method in uranium centrifuge enrichment plants and hot cells in the European Union. These samples were subsequently analysed by the Joint Research Centre, Institute for Transuranium Elements (ITU) in Karlsruhe. The paper describes the analytical results obtained by ITU from swipes taken from enrichment plants using secondary ion mass spectrometry (SIMS). The potential of particle analysis as a safeguards tool in centrifuge enrichment plants in the European Union is evaluated. Some of the open questions that still need to be resolved are also mentioned.
Bibliographic Reference: Paper presented: IAEA Symposium on International Safeguards, Vienna (AT), 13-17 October 1997
Availability: Available from (1) as Paper EN 41330 ORA
Record Number: 199810697 / Last updated on: 1998-06-08
Original language: en
Available languages: en