Stichting Laka

Event Report Forms (ERFs) are filed to the IAEA. Sometimes there are multiple event reports, updating the rating, the event description. Here you only see the latest event report

ERF send date: Thu, 13-06-1991
ERF description: On 11 May at 6.05 pm when the Reactor Core Hold Down was elevated for the refuelling of the reactor, two assemblies of the System for Neutron Flux Monitoring stuck and then fell down on the Control Rod Protection Tubes. The exposure rate measured in the Reactor Hall was in the range of 0.4 mSv/h to 1.3 Sv/h in the immediate proximity of the assemblies. Twenty three workers were exposed. The dose to the most exposed individual was 12.5 mSv.
BASIS FOR RATING: Nevertheless the vent did not affect directly the reactor safety, itwas of some significance because it revealed deficiencies in the safetyculture, i.e. unplanned exposure of workers. Level 1 was justified. Point4.4.e of the Users' Manual
DIFFICULTIES IN RATING:
ERF rating date: 01-01-1991
ERF contact person: Mr. T. Gantchev
ERF address: 69 Shipcyenski Prokhod, Bulgaria
ERF affiliation: Inspect. for Safe Use of Atomic Energy, Committee on the Use of Atomic Energy, for Peaceful Purposes

This map shows a selection of reports from nuclear and radiological incidents stored in the IAEA NEWS-database.
Locations are estimates. Contact us if a location is wrong.
The map shows a maximum of 100 incidents. If hundred incidents or more are within the map, the yellow perimeter indicates from where events are excluded. Drag or zoom the map to explore different areas.

Power Reactor Research Reactor Radwaste Facility Enrichment Facility Radiation Source Irradiation/Accelerator Facility Transportation

Fuel Fabrication Fuel Reprocessing Research Facility Mining/Milling Radioisotope Processing/Handling Facility Other