The following information was provided by the
Louisiana Department of Environmental Quality (the Department) via email:
Today, September 14, 2022, Air Liquide notified the Department that their two dew point testers are considered lost at this time. The dew point tester was manufactured by ALNOR. The device model numbers were 7280U with serial number 12476 and 7200U with serial number 22469. Both devices each contained 6.25 microCuries of Ra-226.
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The last known inventory of the two missing sources occurred in 2007. The facility in which the missing sources were held closed in 2021.
Louisiana Incident Number: LA20220009
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.