The following information was provided by the licensee via telephone:
On March 26, 2024, at 0800 EDT, a spill occurred outside of the Cardinal Health facilitys hot-cell. The spill was an aqueous thorium suspension containing 0.5 microcuries, Th-229 and 1.0 microcuries, Th-228. The spill was confined to the licensees facility.
On March 29, 2024, the licensee became aware of a potential airborne radioactivity hazard posed by the spill and directed personnel to wear respiratory protection in the area of the spill. Personnel dosimetry reports indicate that all external radiation exposures were below regulatory limits. Bioassay samples were taken and preliminary bioassay results were below the analytical minimum detectable concentration. Final bioassay results are pending more sensitive analysis.
Decontamination activities were completed on April 12, 2024.