ENS 51672: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by Mark Hawes) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 12/06/2015 EST | | event date = 12/06/2015 EST | ||
| last update date = 01/21/2016 | | last update date = 01/21/2016 | ||
| title = Agreement State Report - Unable | | title = Agreement State Report - Unable to Retract Source Due to Damaged Guide Tube | ||
| event text = The following information was obtained from the State of Tennessee via email: | | event text = The following information was obtained from the State of Tennessee via email: | ||
On December 6, 2015 at approximately 1300 EST, an exposure device D6032, (880 Delta) containing Source S/N SE4869, 50 Ci of Se-75, fell from its position on top of a flange assembly approximately six feet to the finished floor. Upon impact, the guide tube was crimped preventing the source from being able to return to the camera. The source was able to be returned to the collimator reducing the radiation present. Technicians secured a true two mR boundary and notified plant safety personnel and the RSO. The lead technician onsite was source retrieval certified and took charge of the retrieval process. The source was further shielded in a larger diameter pipe and covered with sand bags to reduce radiation levels. Using a pair of pliers, the technician was able to 're-round' the guide tube opening to allow the source to be returned to the camera. The guide tube, camera and control assembly was taken out of service pending inspection. The guide tube was damaged beyond use; the source 'pigtail' and control cable were inspected and tested using a no-go gauge. The guide tube was removed from service and the control assembly will be sent to the manufacturer for further evaluation (ball end connector). Source retrieval technician received a total dose of 150 mR during the event. | On December 6, 2015 at approximately 1300 EST, an exposure device D6032, (880 Delta) containing Source S/N SE4869, 50 Ci of Se-75, fell from its position on top of a flange assembly approximately six feet to the finished floor. Upon impact, the guide tube was crimped preventing the source from being able to return to the camera. The source was able to be returned to the collimator reducing the radiation present. Technicians secured a true two mR boundary and notified plant safety personnel and the RSO. The lead technician onsite was source retrieval certified and took charge of the retrieval process. The source was further shielded in a larger diameter pipe and covered with sand bags to reduce radiation levels. Using a pair of pliers, the technician was able to 're-round' the guide tube opening to allow the source to be returned to the camera. The guide tube, camera and control assembly was taken out of service pending inspection. The guide tube was damaged beyond use; the source 'pigtail' and control cable were inspected and tested using a no-go gauge. The guide tube was removed from service and the control assembly will be sent to the manufacturer for further evaluation (ball end connector). Source retrieval technician received a total dose of 150 mR during the event. | ||
Latest revision as of 20:45, 1 March 2018
| Where | |
|---|---|
| Applied Technical Services, Inc. Greenville, Tennessee (NRC Region 1) | |
| License number: | R-33172-C19 |
| Organization: | Tennessee Div Of Rad Health |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+1115.38 h46.474 days <br />6.639 weeks <br />1.528 months <br />) | |
| Opened: | Andrew Holcomb 16:23 Jan 21, 2016 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Jan 21, 2016 |
| 51672 - NRC Website | |