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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 43844 | 14 December 2007 01:00:00 | 10 CFR 20.2202(b)(1) | Potential Overexposure | The licensee reported that two personnel, a radiography technician and assistant, were performing radiography shots at a fabrication shop in Detroit, MI. After completion of a shot, the technician cranked the SPEC-150 camera source into the shielded position. The assistant then surveyed the camera and got a background reading, indicating the source was, indeed, shielded. The survey was verified by the technician. The assistant then removed the camera from a hook that it was hanging on and set it on the ground. He then started preps for the next shot and set the survey meter down on the ground. After completing the preps, the assistant noticed that the survey meter was pegged high on the X10 scale. He immediately moved away from in front of the camera and notified the technician. The source was again verified in the shielded position after the technician locked the camera. No rate alarm occurred on the assistant's rate device but his pocket dosimeter indicated off-scale. The Radiation Safety Officer was immediately notified. The assistance estimated he was in front of camera for approximately two to five minutes. The estimated dose received by the assistant was calculated to be between one and five REM. This will be confirmed when the assistant's TLD is read. The RSO has overnighted the TLD to a lab for processing. The camera was removed from service and will be evaluated by the vendor for suspected failure of an internal safety mechanism. |