ENS Event | |
|---|---|
18:00 Nov 17, 2004 | |
| Title | Unplanned Contamination Due to a Broken M1A1 Collimator |
| Event Description | During an exercise conducted in May 2004 at Camp Shelby, MS an M1A1 Collimator, NSN 1240-00-332-1780, containing 10 Curies Tritium was removed from service, i.e., possibly broken, and double-bagged for storage. The device was subsequently transported from Camp Shelby to Shelbyville, TN and ultimately forwarded to the Combined Support Maintenance Shop of the TN National Guard located in Smyrna, TN for repair. A routine pre-maintenance wet swipe test indicated contamination levels as high as 619,094 disintegrations/min using a liquid scintillation meter. This corresponds to an activity of 0.27 microcuries. Two TN National Guard staff have submitted samples for bioassay. The results will be available on Monday, 11/22. Radiation surveys conducted at the Shelbyville and Smyrna, TN storage locations were negative.
The device is currently double-bagged in the low level rad waste storage area of the Combined Support Maintenance Shop awaiting disposal. |
| Where | |
|---|---|
| Us Army Rock Island, Illinois (NRC Region 3) | |
| License number: | 12-00722-06 |
| Organization: | Us Army |
| Reporting | |
| 10 CFR 30.50(b)(1) | |
| Time - Person (Reporting Time:+45.13 h1.88 days <br />0.269 weeks <br />0.0618 months <br />) | |
| Opened: | Thomas Gizicki 15:08 Nov 19, 2004 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Nov 19, 2004 |
| 41211 - NRC Website | |
Us Army with 10 CFR 30.50(b)(1) | |
WEEKMONTHYEARENS 427132006-07-06T04:00:0006 July 2006 04:00:00
[Table view]10 CFR 30.50(b)(1) Unplanned Tritium Contamination During Maintenance ENS 412112004-11-17T18:00:00017 November 2004 18:00:00 10 CFR 30.50(b)(1) Unplanned Contamination Due to a Broken M1A1 Collimator ENS 409412004-07-28T14:20:00028 July 2004 14:20:00 10 CFR 30.50(b)(1) Marine Corp Tritium Device Incident 2006-07-06T04:00:00 | |