The Radiation Safety Officer for Schlumberger Technology Corporation reported that two
Tritium Neutron Pulse Generators (Schlumberger Model 7158) with 1.6 Curie
tritium sources (total of 3.2 Curies) were lost from an oil platform (Oil Platform Ensco-29) in the Gulf of Mexico. The platform was severely damaged and most equipment lost due to
Hurricane Katrina storm damage. The licensee has reported this item to Region 4.
This is less than the quantity of an IAEA Category 3 source.
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.
For some of these sources, such as
moisture density gauges or thickness
gauges that are
IAEA 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.