INES-event
INES 1

OVEREXPOSURE OF OPERATORS WHILE CHARGING IRRADIATED FUEL BUNDLES INTO THE DISSOLVER

Spent fuel reprocessing campaign at Plutonium Plant was in progress on 18th March 1994. The charging cask with the fuel was mated to the dissolver port hole at the charging bay of the dissolver. The liner with the fuel was pushed in and the pushing of the fuel into the dissolver was started. But the fuel got stuck between the dissolver port and the liner. When the charging cask was withdrawn, the fuel was partly out of the cask. There was no damage to the cladding nor any release of radioactivity to the environment.
The fuel could be retrieved into charging cask in about 15 minutes and the cask with the fuel could be lowered and placed in the fuel storage pond. During the retrival operations one operator received 26 mSv while two others received 8 mSv dose. These were less than the annual statutory limit.
The event was rated at level 1 on the INES using the clauses III-3.1.3 (Events related to fuel handling and IV-5.1.4 (Dose control)

Location: TROMBAY PLUTONIUM PLANT
Event date: Fri, 18-03-1994
Nuclear event report
Legenda & explanation