ENS Event | |
|---|---|
07:00 May 3, 2022 | |
| Title | Lost I-125 Brachytherapy Seeds |
| Event Description | The following was received from the California Department of Public Health Radiologic, Health Branch via email:
The Radiation Safety Officer for UCSD [(University of California, San Diego)] contacted the Radiologic Health Branch regarding the loss of I-125 sealed sources. He also reported the loss to the CA State Warning Center (control no. 22-2532). A medical physicist at the Moore's Cancer Center at UCSD received a box that contained 4 packs of I-125 sealed sources instead of his expectation of 3 packs. The medical physicist removed 3 packs and set the packing box outside for recycling, believing it was empty. The cardboard box was taken away by environmental services staff and has possibly been taken to the on-campus recycling center. The pack contains approximately 6-7 I-125 medical brachytherapy seeds with combined activity of 2.3 millicuries. The seeds are sealed in a shielded, sterile pack. The expected exposure level is close to background radiation level outside of the shielded pack. UCSD sent health physicists to the recycling center to search for the missing package. 5010 Number: 050322 THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |
| Where | |
|---|---|
| University Of California, San Diego La Jolla, California (NRC Region 4) | |
| License number: | 1339-37 |
| Organization: | California Radiation Control Prgm |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+36.52 h1.522 days <br />0.217 weeks <br />0.05 months <br />) | |
| Opened: | L. Robert Greger 19:31 May 4, 2022 |
| NRC Officer: | Ossy Font |
| Last Updated: | May 4, 2022 |
| 55876 - NRC Website | |
University Of California, San Diego with Agreement State | |
WEEKMONTHYEARENS 558762022-05-03T07:00:0003 May 2022 07:00:00
[Table view]Agreement State Lost I-125 Brachytherapy Seeds ENS 553682021-07-20T07:00:00020 July 2021 07:00:00 Agreement State Y-90 Brachytherapy Underdose 2022-05-03T07:00:00 | |