The following report was received from the
North Carolina Division of Health Service Regulation, Radioactive Materials Branch via email:
Licensee reports that an Industrial Radiography [IR] exposure device was unaccounted for during the 15 hours1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br /> following work site activities on March 1st. The IR device was left unsecured the entire time until discovered the morning of March 2nd by the radiography crew that left it. The device [Spec 150; S/N: 1251] and source [72 Ci Ir-192; Model: G-60; S/N: AA0805] are secured and in possession of the corporate RSO [Radiation Safety Officer] at the time of this report. North Carolina Radioactive Materials Branch has initiated an investigation and will update this report for completion.
NC Event Tracking ID: 190008
THIS MATERIAL EVENT CONTAINS A "CATEGORY 2" LEVEL OF RADIOACTIVE MATERIAL
Category 2 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for a short time (minutes to hours). It could possibly be fatal to be close to this amount of unshielded radioactive material for a period of hours to days. These sources are typically used in practices such as industrial gamma radiography, high dose rate
brachytherapy and medium dose rate
brachytherapy. For additional information go to
http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf