The State of
Louisiana reported the theft of a Thermomeasure Model 5715 1C
gauge containing a 100 mCurie
CS-137 source (S/N B5633). The
gauge was in a truck in a fenced parking area for the licensee (B J Services). The theft was discovered around 0200
CDT on 6/14/08 but the last time the
gauge was accounted for was on 6/11/08. The theft has been reported to the police. The State of
Louisiana is investigating.
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.
Although IAEA categorization of this event is typically based on device type, the staff has been made aware of the actual activity of the source, and after calculation determines that it is a Less than Cat 3 event.
Note: the value assigned by device type "Category 3" is different than the calculated value "Less than Cat 3