On February 26, 2007 a 5 millicurie
Polonium 210 source
static eliminator button was identified as lost or
stolen from a silicone extruder frame. The device was last used on February 23, 2007. The lost button was 1 of 3 buttons on the extruder. The device model number is P2042, serial number A2FD631. The
static eliminator is leased from Amstat Industries, 3012 North Lake Terrace, Glenview, IL 60026. A department-wide search and an interview with all employees was conducted without success. It is believed that the button may have been swept up during floor cleaning and ultimately disposed of in a land fill. The search for the missing button will continue and corrective actions have been put in place to prevent reoccurrence.
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.