The following information was obtained from the State of
California via e-mail:
Six sources of Am-241 were involved in a fire. Three of the sources were not damaged. The other three are believed to be encased in melted/solidified masses of metal that had encased the sources. Each source was approximately 24 nanocuries. Initial surveys did not identify radiological contamination. Further analysis of the solidified metal believed to contain the three sources is planned.
The fire was initiated by the spontaneous combustion of charcoal fines used at the facility.
There were no personnel injuries related to the fire event.
Local media carried a story on the fire, but not the radiological component.
The Am-241 sources are used as stabilizing sources in the air monitors.
The sealed sources are not believed to have been breeched. The State and licensee will be performing follow-up investigations into the final disposition of the three sources encased in the solidified metal.
California Report Number: 5010-081910.