ENS 54861
ENS Event | ||
|---|---|---|
07:00 Jul 7, 2020 | ||
| Title | Agreement State Report - Radiography Camera Source Retraction Failure | |
| Event Description | The following information was received via E-mail:
The Radiation Safety Officer with Mistras Group, Inc. contacted the Radiologic Health Branch regarding an incident with an Ir-192 radiography source that was determined to be locked out of its exposure device. The source was an Industrial Nuclear Model 32 Ir-192 source, Serial Number 550F, with an activity of 63.4 Curies. The device was an Industrial Nuclear Ir-100, Serial Number 4358. The incident occurred during radiography operations at a refinery in El Segundo. After a routine exposure, the radiographer retracted the source. The radiographer then proceeded with the radiation survey that showed a dose rate of 80 mR/hr approximately 2 feet from the exposure device, indicating that the source was not in the locked and shielded position. The radiographer contacted the RSO who instructed them to readjust the restricted area boundary to maintain 2 mR/hr dose rate. After the RSO arrived at the site, they placed shielding to reduce the dose rate while performing retrieval and returning the source to the locked and secured position. The device was then red tagged and placed out of service until it could be evaluated by the manufacturer. The highest dose received by Mistras Personnel (RSO) was 20 mrem, as read by a self-reading pocket dosimeter. The licensee's investigation into this event is ongoing and will be reviewed further by the California Department of Public Health. California 5010 Number: 070820 | |
| Where | |
|---|---|
| California Radiation Control Prgm Torrance, California (NRC Region 4) | |
| License number: | 4832-19 |
| Organization: | California Radiation Control Prgm |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+1216.82 h50.701 days <br />7.243 weeks <br />1.667 months <br />) | |
| Opened: | Robert Greger 23:49 Aug 26, 2020 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Aug 27, 2020 |
| 54861 - NRC Website | |
California Radiation Control Program with Agreement State | |||
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