The following information was obtained from the State of
California via email:
On August 27, 2018, [the licensee's radiation safety officer] RSO contacted the Brea Office of the [California] Radiologic Health Branch to report that a moisture density gauge had been stolen from a gauge operator's truck in Santa Rosa, California. The operator stated that the gauge was stolen sometime between the evening of Saturday, August 25, 2018 and the morning of Sunday, August 26, 2018. The gauge was a CPN model MC-3, S/N M320906734 containing nominally 10 mCurie of Cs-137 and 50 mCurie of Am-241:Be. A report was filed with the Santa Rosa Police Department.
California Report Number 5010-082718
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