The following was received via e-mail from the
Texas Department of State Health Services:
On April 14, 2021, the licensee reported to the agency [Texas Department of State Health Services] that one of its crews had been unable to retract a source while working at a temporary job site. They were using a QSA Delta 880 exposure device with a 96.7 curie iridium-192 source. The radiographers were cranking in the source and it did not feel right but it retracted and locked in inside the camera. They performed a survey of the camera and guide tube and found the source was in the fully shielded position. They cranked out for the next shot without issue but when they attempted to retract the source it was no longer on the end of the drive cable. The radiographers set a barricade and called the radiation safety officer (RSO). The RSO responded and performed a source retrieval. His electronic dosimeter indicated he received 70 mrem and there were no other exposures as a result of this event. The RSO reported that the drive cable had broken below the shank. The equipment will be sent to the manufacturer for evaluation. More information will be provided as it is obtained in accordance with SA-300.
Equipment information:
QSA Delta 880 exposure device SN: D8849
96.7 curie iridium-192 source SN: 30413M
Texas Incident no.: 9841