ENS Event | |
|---|---|
22:06 Mar 3, 2009 | |
| Title | Failure to Fully Retract Source of Radiography Camera |
| Event Description | Radiography technicians were performing pipeline corrosion shots on piping in the North Slope of Alaska when they inadvertently locked the source outside of the shielded position in the camera while retracting the source. The technicians were using an Industrial Nuclear Corporation (INC) IR-100 camera which contains a nominal 120 Curie (original strength) Ir-192 source.
When the technicians realized what had occurred, they immediately cordoned off the area and requested help. A trained camera technician arrived and, after shielding the source, was able to manipulate the key lock and retract the source into the safe (shielded) position. The highest radiation reading observed behind the camera was 40 mR/hr. Exposures to all personnel involved in the recovery of the source was less than 20 mR. Since the radiography was being performed in a remote location, there was no chance of exposure to any members of the general public. Currently, the camera has been removed from service and is being sent to INC for inspection and maintenance.
After receiving all the reports by the parties concerned it was not a malfunction of the exposure device that caused this event. The event occurred due to snow and ice build up in the locking mechanism and the radiographer turning the key inadvertently. This report will be forwarded to Region IV. Notified R4DO (Proulx) and FSME (McIntosh) |
| Where | |
|---|---|
| Kakivik Asset Management, Llc Anchorage, Alaska (NRC Region 4) | |
| License number: | 50-27667-01 |
| Organization: | Kakivik Asset Management, Llc |
| Reporting | |
| 10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure | |
| Time - Person (Reporting Time:+-2.32 h-0.0967 days <br />-0.0138 weeks <br />-0.00318 months <br />) | |
| Opened: | Keenan Remele 19:47 Mar 3, 2009 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Mar 4, 2009 |
| 44888 - NRC Website | |
Kakivik Asset Management, Llc with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 513762015-09-07T20:05:0007 September 2015 20:05:00
[Table view]10 CFR 30.50(b)(2) Failure of Camera Source Lock Slide to Lock ENS 448882009-03-03T22:06:0003 March 2009 22:06:00 10 CFR 30.50(b)(2) Failure to Fully Retract Source of Radiography Camera ENS 443292008-06-24T04:00:00024 June 2008 04:00:00 10 CFR 30.50(b)(2) Premature Locking of Inc Ir-100 Exposure Device 2015-09-07T20:05:00 | |