The following is a summary of information received from the licensee's Radiation Safety Officer (
RSO) via phone:
While two radiographers where shooting pipe welds in Saint Albans, WV with a 100 Ci Ir-192 radiography camera, a separate pipe rolled off and crimped the guide tube with the source in the collimator. They extended the work area to 1 mR/h and called a retrieval team. The team arrived 1.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> later with lead bags, which were placed on the collimator, reducing the dose rate to 1 mR/h at the source. They cut some of the crimped metal in order to retract the source. The camera was returned to the licensee's South Point, Ohio storage unit. The guide tube will be cut and replaced.
The dose to the radiographer and radiographer assistant was 30 mrem and 19 mrem, respectively. The dose to the retrieval team
RSO and
RSO assistant was 30 mrem and 22 mrem, respectively.