ENS 55502
ENS Event | |
|---|---|
05:00 Sep 30, 2021 | |
| Title | Unretractable Source |
| Event Description | The following was received from the Mississippi Division of Radiological Health via email:
On 30 September 2021, a Radiography crew was conducting radiography testing of a 12 inch pipe located at Plant Dudley, 308 Moselle Seminary Road, Moselle, Mississippi. During their test, the crew realized the 118 Ci, Ir-192 source (QSA Global, Sentinel, Serial#: 33736M) was not in the camera (QSA Global, Sentinel 880D, Serial#: D6695). The crew notified the Radiation Safety Officer (RSO) at approximately 1300 EDT and he instructed them to cover the collimator with lead shot bags and additional shielding. Upon arrival into the restricted area and [after] four [retrieval] attempts, the RSO discovered the cable behind the connector had separated (130 mR total on [RSO] pocket dosimeter). The collimator was facing down and the source was 90 percent shielded, according to the RSO. The RSO was approximately six inches from the source as he cut away the tube, which lasted for three and half to four minutes (saturated pocket dosimeter and electronic dosimeter read 6 R). During the entirety of the incident, the location was secure and under constant surveillance. Weather in the area was rainy. Upon completion of the source retrieval, the RSO brought the crank/cable to the Applied Technical Services (ATS) Metallurgy Lab to perform a chemistry and forensics investigation. Once the ATS, Inc. investigation is complete, the crank/cable will be sent to QSA Global. Currently, the camera is being stored at the Alabama storage location. Mississippi Event Number: MS-210002
The RSO sent his dosimetry results to Landauer for immediate processing, and he received the results, Tuesday, October 5, 2021. Please see below: 7/1/2021-9/30/2021: Collar: DDE: 1456 mrem LDE: 1460 mrem SDE: 1461 mrem Rt Finger: 10255 mrem Lt Finger: 35538 mrem Rt Ankle: 721 mrem Lt Ankle: 336 mrem 9/1/2021-9/30/2021 Chest: DDE: 2581 mrem LDE: 2581 mrem SDE: 2530 mrem Quarter 3 Collar and Chest: DDE: 4040 mrem LDE: 4045 mrem SDE: 3995 mrem Rt Finger: 10255 mrem Lt Finger: 35538 mrem Rt Ankle: 721 mrem Lt Ankle: 336 mrem Total Year to Date: Collar and Chest: DDE: 4045 mrem LDE: 4052 mrem SDE: 4015 mrem Rt Finger: 10255 mrem Lt Finger: 35538 mrem Rt Ankle: 721 mrem Lt Ankle: 336 mrem The investigation into this event is ongoing. Information will continue to be provided as it is received according to SA-300. Notified R1DO (Carfang), R4DO (Dixon) and NMSS Events Resource (email). |
| Where | |
|---|---|
| Applied Technical Services Mobile, Alabama (NRC Region 1) | |
| License number: | 1454 |
| Organization: | Mississippi Div Of Rad Health |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+42.77 h1.782 days <br />0.255 weeks <br />0.0586 months <br />) | |
| Opened: | Julia Mcroberts 23:46 Oct 1, 2021 |
| NRC Officer: | Lloyd Desotell |
| Last Updated: | Oct 9, 2021 |
| 55502 - NRC Website | |
Applied Technical Services with Agreement State | |
WEEKMONTHYEARENS 567422023-09-14T22:00:00014 September 2023 22:00:00
[Table view]Agreement State Stuck Source ENS 555022021-09-30T05:00:00030 September 2021 05:00:00 Agreement State Unretractable Source ENS 554222021-08-12T05:00:00012 August 2021 05:00:00 Agreement State Loss of Protective Cover Over Locking Mechanism ENS 535082018-06-25T04:00:00025 June 2018 04:00:00 Agreement State Agreement State Report - Radiography Camera Source Unable to Retract 2023-09-14T22:00:00 | |