The following report was received via e-mail:
On October 26, 2016, the Agency was notified that two exit signs had been found missing during inventory. The licensee was contacted and asked to provide additional information including when the discovery was made and activity contained. The licensee's subsequent email revealed that the signs contained 0.426 TBq each of tritium. The signs had been discovered missing in April of 2016. The disposition of these signs is unknown. Additional information will be provided in accordance with SA-300.
Texas event : I-9436
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