WPNCS Expert Group on Assay Data of Spent Nuclear Fuel (ADSNF)

Under the guidance of the Working Party on Nuclear Criticality Safety, the Expert Group on Assay Data of Spent Nuclear Fuel is responsible for the maintenance of the NEA spent fuel isotopic composition database SFCOMPO. This Expert Group is also responsible for the production of a state-of-the-art report on the assay data of spent nuclear fuel which documents the full process of obtaining these data from the experimental methods used to the choice of presenting and formatting of the data. Applications of the data include, among others: burn-up credit analysis, reactor system monitoring, fuel reprocessing and radioactive waste management.

Major assignments of this Expert Group include:

Since 2012 a collaborative effort led by the NEA Expert Group on Assay Data of Spent Nuclear Fuel, has resulted in the creation of a new enhanced relational database structure and a significant expansion of SFCOMPO, now containing experimental assay data for a wide selection of international reactor designs. This new SFCOMPO database is currently in its development version and is expected for public release in 2014.

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For more information on ADSNF activities please contact .

Last updated: 4 April 2014

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