ENS 54377: Difference between revisions
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On November 7, 2019, the licensee's radiation safety officer (RSO) notified the Agency [Texas Department of State Health Services] that at approximately 2000 CST on November 6, 2019, one of their industrial radiography crews had been unable to retract a 113 Curie iridium-192 source (model 702, SN: TT2307) into a QSA 880 Delta exposure device (SN: D7727) at a temporary job site in Sonora, Texas. The RSO stated the drive cable had broken at the ball stop. Source retrieval was performed by authorized employees. The initial radiographers' and another of the licensee employee's self-reading pocket dosimeters read 13 and 14 mR. The two authorized source retrievers' self-reading pocket dosimeters had readings of approximately 300 mR. All dosimetry badges are being sent for immediate processing. There were no other persons in the area so there was no risk of exposure to any member of the public. The RSO and staff will examine the crank assembly and drive cable when it gets to their location on November 8, 2019. The RSO also plans to send the crank assembly/drive cable for evaluation by a third party service/repair company. The exposure device was tested multiple times using a different set of cranks following the retrieval and it operated properly. An investigation into this event is ongoing. More information will be provided as it is obtained in accordance with SA-300. | On November 7, 2019, the licensee's radiation safety officer (RSO) notified the Agency [Texas Department of State Health Services] that at approximately 2000 CST on November 6, 2019, one of their industrial radiography crews had been unable to retract a 113 Curie iridium-192 source (model 702, SN: TT2307) into a QSA 880 Delta exposure device (SN: D7727) at a temporary job site in Sonora, Texas. The RSO stated the drive cable had broken at the ball stop. Source retrieval was performed by authorized employees. The initial radiographers' and another of the licensee employee's self-reading pocket dosimeters read 13 and 14 mR. The two authorized source retrievers' self-reading pocket dosimeters had readings of approximately 300 mR. All dosimetry badges are being sent for immediate processing. There were no other persons in the area so there was no risk of exposure to any member of the public. The RSO and staff will examine the crank assembly and drive cable when it gets to their location on November 8, 2019. The RSO also plans to send the crank assembly/drive cable for evaluation by a third party service/repair company. The exposure device was tested multiple times using a different set of cranks following the retrieval and it operated properly. An investigation into this event is ongoing. More information will be provided as it is obtained in accordance with SA-300. | ||
Texas Incident No: 9723 | Texas Incident No: 9723 | ||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/ | | URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20191118en.html#en54377 | ||
}} | }} | ||
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Latest revision as of 08:30, 18 November 2019
| Where | |
|---|---|
| Desert Ndt Llc Sonora, Texas (NRC Region 4) | |
| License number: | L06462 |
| Organization: | Texas Dept Of State Health Services |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+32.92 h1.372 days <br />0.196 weeks <br />0.0451 months <br />) | |
| Opened: | Karen Blanchard 14:55 Nov 7, 2019 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Nov 7, 2019 |
| 54377 - NRC Website | |