The following information was received via E-mail:
The Radiation Safety Officer (RSO) for Empire Geotechnical reported that his CPN nuclear gauge was stolen from the back of his pickup truck sometime overnight between 2100 EDT on October 28, 2020 and 0630 PDT on October 29, 2020.
CA Dept. of Public Health Radiologic Health Branch (RHB) inspector contacted the Empire Geotechnical RSO by phone and confirmed the RSO left his truck parked on the street in front of his office with the gauge secured in the rear of the pickup under a locked deck lid. The RSO is in the process of reporting the theft to the Orange Police Department.
The gauge is a CPN MC1DR, [serial] number MD90204854, that contains two special form sealed sources: 370 MBq (10 mCi) of Cs-137 and 1.85GBq (50 mCi) of Am-241/Be.
California 5010 Number: 102920
Cal OES control number: 20-6025, October 29, 2020
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