The following information was received from the State of
Maine via email:
Colby College reported the theft of four radioluminescent exit signs (Isolite model SLX-60, serial #13-9009, 13-9010, 13-9011, and 13-9013), each containing 229.4 GBq (6.2 Ci) of H-3. The signs were discovered to be missing during an annual inventory performed on 8/21/2014.
This event was reported to the State of Maine on 12/04/2014. An NMED report was submitted on 02/02/2015 [NMED Item Number: 150092].
Maine Report Nr.: ME150001
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