The following information was obtained from the State of
Texas via email:
In the afternoon of August 17, 2009, the licensee had concluded that four static eliminators, NRD Model P-2021-Y000 containing 500 microCi each could not be located and were presumed lost, probably discarded in the general refuse. The sources were removed from the machines they were mounted on while the area was undergoing some renovation or relocation of equipment. However, when the equipment in which the devices were housed were attempted to be placed back in service, the devices were noted as missing. Repeated attempts to locate the sources and devices have proved futile.
Texas Report I-8659
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.