The following was received from the
California Department of Public Health, Radiologic Health Branch (
RHB) via email:
On March 29, 2023, RHB was notified by the Manager of Regal Manchester Cinemas 16 number 1820 via email that a second tritium exit sign was stolen from the movie theater hallway leading towards auditorium number 8. It appeared that it was pulled out forcefully from the wall. Please note that the first exit sign was stolen on March 8, 2023 (see EN56399). The facility has not provided RHB with the model, serial number, or quantity for the exit signs.
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