The following information was obtained from the State of
Nebraska via email:
GL0370 Church of Jesus Christ of Latter Day Saints - Norfolk submitted their Annual Renewal and Inventory on March 9, 2018. On May 15, 2018, GL0370 re-submitted their Inventory, indicating that two tritium exit signs were missing. A follow-up phone call placed to the licensee indicated the licensee did not actually conduct an inventory of the devices prior to the March 9th documentation. They have searched through all back records and can find no indication of when the devices were removed.
Source number 1 information:
Device name: Sealed Source Luminous
Manufacturer: Isolite
Model Number: SLX60
Serial Number: 10-7234
Radionuclide: H-3
Activity: 10 Ci
Source number 2 information:
Device name: Sealed Source Luminous
Manufacturer: Isolite
Model Number: SLX60
Serial Number: 10-17588
Radionuclide: H-3
Activity: 10 Ci
Nebraska Item Number: NE180004
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.p