The following information was obtained from the state of
Florida via email:
First quarter 2012 whole body dosimeter badge for a nuclear med tech indicated a 10.5 Rem dose. Badge was recounted and the dose remained the same. Dose is not confirmed by ancillary ring dosimeters. Ring dosimeters indicate a typical 100 mR/month. Because the ring dosimeters do not confirm the badge dose, the consulting health physicist does not think this is a valid dose and the med tech is still working. Florida is investigating.
The isotope used by the medical technician is Tc-99, 30 mCi.
Florida Incident Number: FL12-049
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
This source is not amongst those sources or devices identified by the
IAEA Code of Conduct for the Safety & Security of Radioactive Sources to be of concern from a radiological standpoint. Therefore is it being categorized as a less than Category 3 source