The following information was provided by the
Texas State Department of Health (the Department) via email:
On July 7, 2025, at about 0710 CDT, a report was made by the licensee that an Istrotek model 3500 moisture density gauge containing a 10 mCi Cs-137 source and a 40 mCi Am241/Be source had been discovered stolen at 0518 CDT on July 7, 2025, from the bed of a pickup truck at the residence of an employee in Fort Worth, Texas. The securing chains and locks had been breached overnight and the gauge taken.
The gauge handle was secured by a lock; no immediate public health issue is anticipated.
A report was made to the Fort Worth Police Department.
Texas incident number: 10208
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