Cernavoda Unit 1 is Romania's only NPP. It is a 700 MWe CANDU 6 pressurized heavy water reactor that has been operating for over 10 years. Unit 1 is the first operational reactor on the site, which is being developed to support additional units.
Wastes had previously only been characterised according to contact dose rate, tritium content and a small number of gamma emitting radionuclides. Although this information is important for operational management of the waste, extra information about the content of longer-lived alpha- and beta-emitting radionuclides is needed to determine its safe management in the future.
- Reviewed waste characterisation at the NPP and best European practices;
- Specified a new waste characterisation assay system and assisted in its procurement, installation and commissioning;
- Developed reliable methodologies for radioactive waste characterisation;
- Provided training to NPP staff and conducted a wider study tour;
- Undertaken a campaign to characterise selected wastes; and
- Assessed wastes based on their potential disposal route.
The successful outcome of the 18 month project has provided the site with a highly capable resource for radioactive waste characterisation that will be of major benefit to the efficient and optimised management of wastes in the future.