ENS 46002
ENS Event | |
|---|---|
21:00 Jun 11, 2010 | |
| Title | Agreement State Report - Stuck Radiography Camera Source |
| Event Description | At approximately 1600 CDT local time, a Kansas Licensee, Team Industrial Services Inc., reported that they had a radiography camera source become stuck during source retraction. While they were retracting the source, the stand tipped and resulted in the guide tube being bent such that the source could not be fully retracted. The licensee was able to secure the area easily since the shot was being conducted in a vault. Personnel exited the area and the licensee contacted their corporate RSO in Hammond, Indiana. There is no concern by the licensee of any over-exposure.
The State, after talking with the licensee's corporate RSO, authorized recovery by a person on-site who is listed under the NRC license in Indiana. The State is expediting reciprocity paperwork to recognize the source recovery. Kansas # KS-100005.
At 1725 CDT the source was successfully retracted. Notified R4DO (Powers) and FSME (Mauer).
The State of Kansas provided the following additional details on this event via facsimile: Equipment involved: QSA Global model 880D exposure device s/n D3027, Iridium 192 s/n 59219B, 26.6 curies, with associated equipment including drive mechanism, guide tube. And a tungsten collimator. Description of incident: At approximately 3:15 pm, the magnetic stand used during the exposure set up fell at the conclusion of a radiographic exposure and impacted the source guide tube causing it to crimp and preventing the source assembly from returning to the fully shielded position within the exposure device. Actions taken to resolve: The exposures were conducted within a shielded room thereby providing radiation attenuation and enhancing control of the area during incident remediation activities. There were no exposures to unmonitored persons or members of the general public. The Radiographer immediately contacted emergency response personnel within Team Industrial Services, Inc. including the Corporate Radiation Safety Officer. The CRSO performed a preliminary assessment of the event and contacted Kansas Department of Health and Environment. A retrieval plan was developed and discussed with on site personnel. The plan used involved the placement of additional shielding (including available steel and bags of welding flux) at the source location using an overhead crane. This reduced the radiation levels to the point that the radiographer could approach the location of the crimp and remove the crimp by applying pressure using large adjustable pliers (i.e. channel-lock type). He then retracted the source into the fully shielded position within the exposure device, surveyed, and locked the device. The exposure for the complete activity including the radiographic operations was 120 mrem for the radiographer and 75 mrem for the assistant radiographer as registered on their assigned direct reading dosimeters. Corrective Actions taken: The damaged guide tube was immediately removed from service. An inspection of the device and drive assembly, including the drive cable and source assembly, will be conducted to determine if any damage occurred before releasing for continued use. An investigation into the use of the magnetic stand will be conducted to try to determine the problems associated with the use of this type of source positioning device. Notified R4DO (Powers), R3DO (Kunowski), and FSME (Mauer). |
| Where | |
|---|---|
| Team Industrial Services Inc. Hutchinson, Kansas (NRC Region 4) | |
| License number: | 21-B875 |
| Organization: | Kansas Dept Of Health & Environment |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+-3.65 h-0.152 days <br />-0.0217 weeks <br />-0.005 months <br />) | |
| Opened: | David Whitfill 17:21 Jun 11, 2010 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Jun 14, 2010 |
| 46002 - NRC Website | |
Team Industrial Services Inc. with Agreement State | |
WEEKMONTHYEARENS 526032017-03-09T06:00:0009 March 2017 06:00:00
[Table view]Agreement State Agreement State Report - Fire During Radiography Operations ENS 460022010-06-11T21:00:00011 June 2010 21:00:00 Agreement State Agreement State Report - Stuck Radiography Camera Source 2017-03-09T06:00:00 | |