ENS 50923
ENS Event | |
|---|---|
05:00 Mar 15, 2015 | |
| Title | Agreement State Report - Extremity Overexposure While Operating a Radiography Camera |
| Event Description | The following report was received from the Texas Department of State Health Services via email:
On March 25, 2015, the licensee reported that on March 15, 2015, one of its industrial radiographer trainees had experienced a possible overexposure to his right hand while using a QSA Model 880 camera that contained a 54.5 curie iridium-192 source. Initial information reported by the licensee: Following the 10th and final exposure of the day, the radiographer trainee climbed a ladder to the first deck and approached the camera from the rear with a survey meter. He performed a 360 degree survey of the camera and full length of the guide tube noting a zero reading on the survey meter. He then attempted to disconnect the guide tube by attempting to rotate the outlet port cover. When it would not rotate, he looked at the back of the camera to ensure the selector was in the correct position, and then attempted to disconnect the guide tube a second time. Again, the outlet port cover would not rotate and he looked at the back of the camera and noticed the slide bar of the lock was showing red, indicating the source was not in the fully shielded and secure position. He climbed down the ladder and informed the radiographer trainer what had happened. The radiographer trainer exposed the source approximately 1/4 turn and forcibly retracted it to its fully locked and shielded position. They checked the survey meter (battery function check) and determined it was not working properly. The meter was disassembled, battery terminals were adjusted, and the meter functioned properly. The radiographer trainer surveyed the camera and determined the source was fully retracted. The radiographer trainee stated he did not hear his alarming rate meter due to the noise level at the job site. The radiographer trainer did not receive any additional exposure as a result of this event. The radiographer trainee's pocket dosimeter was off-scale. His dosimetry badge was sent for processing and from the results the licensee determined he had received 384 millirem whole body dose from this event. Calculations will be made following a re-enactment of the event on 03/30/2015 to determine the dose to his hand. Exposure Device: QSA Model 880D SN: D1123, Source: 54.5 curies iridium-192 SN: 14191G The State of Texas is continuing to investigate the issue. Texas report ID #: I-9291 |
| Where | |
|---|---|
| Mistras Group Inc. Deer Park, Texas (NRC Region 4) | |
| License number: | L063369 |
| Organization: | Texas Dept Of State Health Services |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+252.97 h10.54 days <br />1.506 weeks <br />0.347 months <br />) | |
| Opened: | Karen Blanchard 17:58 Mar 25, 2015 |
| NRC Officer: | Jeff Herrera |
| Last Updated: | Mar 25, 2015 |
| 50923 - NRC Website | |
Mistras Group Inc. with Agreement State | |
WEEKMONTHYEARENS 574162024-11-08T01:30:0008 November 2024 01:30:00
[Table view]Agreement State Crimped Source Guide Tube ENS 566242023-07-15T05:00:00015 July 2023 05:00:00 Agreement State Radiography Source Disconnection ENS 541232019-06-17T15:30:00017 June 2019 15:30:00 Agreement State Agreement State Report - Damage to Radiography Guide Tube Preventing Retraction of Source ENS 509232015-03-15T05:00:00015 March 2015 05:00:00 Agreement State Agreement State Report - Extremity Overexposure While Operating a Radiography Camera ENS 493482013-09-13T05:00:00013 September 2013 05:00:00 Agreement State Agreement State Report - Radiography Camera Source Fails to Retract ENS 493472013-09-12T05:00:00012 September 2013 05:00:00 Agreement State Agreement State Report - Radiography Camera Source Fails to Retract ENS 492442013-08-05T05:00:0005 August 2013 05:00:00 Agreement State Agreement State Report - Stuck Radiography Camera Source ENS 455812009-12-15T08:00:00015 December 2009 08:00:00 Agreement State Agreement State Report - Damaged Radiography Camera 2024-11-08T01:30:00 | |