The licensee called to report a missing 15 millicurie Nickel-63 source (serial #5404) used in a gas chromatograph electron capture detector. The licensee is in the process of moving their business location and discovered that this specific source was missing. It was last inventoried 29 days ago. All other sources possessed by the licensee have been accounted for. The licensee is still searching for the source which may have been misplaced in the move. However, there is a possibility that the source may have been inadvertently disposed.
The licensee has notified NRC Region 1 (Jackson).
THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than
IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as
moisture density gauges or thickness
gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to
http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf