ENS Event | |
|---|---|
05:00 Apr 17, 2025 | |
| Title | Failure of Exit Portal Monitor |
| Event Description | The following report was received by the Illinois Emergency Management Agency (the Agency) via phone and email:
The corporate radiation safety officer for Isomedix Operations, Inc. (IL-01123-02) contacted the Agency on 4/18/2025 to report that during routine monthly testing of the exit portal monitor conducted on 4/17/2025, on the Co-60 pool irradiator (irradiator 192), the monitor failed to respond to radiation. The issue was immediately identified as corrosion on the cable-to-probe connection and was subsequently repaired, tested, and found to be functional. There was no report of exposure to personnel or loss of control. The licensee reported the failure within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> as required by 346.830(a) and will submit a written report within 30 days as required. Illinois Item Number: IL250017 |
| Where | |
|---|---|
| Isomedix Operations, Inc. Libertyville, Illinois (NRC Region 3) | |
| License number: | IL-01123-02 |
| Organization: | Illinois Emergency Mgmt. Agency |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+32.48 h1.353 days <br />0.193 weeks <br />0.0445 months <br />) | |
| Opened: | Robin Muzzalupo 13:29 Apr 18, 2025 |
| NRC Officer: | Kerby Scales |
| Last Updated: | Apr 18, 2025 |
| 57672 - NRC Website | |
Isomedix Operations, Inc. with Agreement State | |
WEEKMONTHYEARENS 578182025-07-16T05:00:00016 July 2025 05:00:00
[Table view]Agreement State Equipment Failure ENS 576722025-04-17T05:00:00017 April 2025 05:00:00 Agreement State Failure of Exit Portal Monitor ENS 558382022-04-11T17:00:00011 April 2022 17:00:00 Agreement State Failure of a Component of the Access Control System 2025-07-16T05:00:00 | |