James Fisher Nuclear has provided in cell decontamination equipment used for the removal of surface contamination from tooling prior to maintenance operations. This equipment has been used by the B212 caesium plant decommissioning team and operates in a fully remote mode or with glove box access for specific cleaning tasks, when activity levels have been sufficiently reduced. For this equipment to function, the tooling has to have been designed with appropriate fixtures to interface with the booth.

Where there is a need to decontaminate materials for the purposes of lowering their classification ie from ILW to LLW James Fisher Nuclear has undertaken a development project to fully remotely decontaminate materials of a wide variety of geometries. This process involves the remote laser scanning of the geometry and then using the data to control the deployment of the decontamination process. The process may take a number of forms depending upon the materials involved.

The system shown above is installed in the Vitrification plant and is used to decontaminate the polar crane when in the hoist park prior to maintenance. The spray head also has a radiation monitor attached so that the level of decontamination can be measured.