ENS Event | |
|---|---|
14:30 Jul 19, 2004 | |
| Title | Failure of Cable Drive Mechanism to Lower Table Fully Into the Pool of Their Irradiator |
| Event Description | The licensee, the University of Michigan at Ann Arbor, reported that they had a failure of the cable drive mechanism in their irradiator. While they were lowering the table into the pool, the mechanism failed after being lowered to the level where the high radiation light went out. The activity of the Cobalt 60 sources in the irradiator is 8,763 curies. The table was then remotely manually lowered into the pool to a level where there was no measured exposure detected by their ion chamber detectors. The current exposure rate at the surface is 1mr/hr. The room will be secured until the person in charge of the irradiator returns from vacation. Only the HP has keys to the room. There were no injuries or overexposures during this incident. |
| Where | |
|---|---|
| Univ Of Michigan Ann Arbor, Michigan (NRC Region 3) | |
| License number: | R-28 |
| Reporting | |
| 10 CFR 36.83(a)(4) | |
| Time - Person (Reporting Time:+2.4 h0.1 days <br />0.0143 weeks <br />0.00329 months <br />) | |
| Opened: | Joe Miklos 16:54 Jul 19, 2004 |
| NRC Officer: | Chauncey Gould |
| Last Updated: | Jul 19, 2004 |
| 40880 - NRC Website | |
Univ Of Michigan with 10 CFR 36.83(a)(4) | |
WEEKMONTHYEARENS 408802004-07-19T14:30:00019 July 2004 14:30:00
[Table view]10 CFR 36.83(a)(4) Failure of Cable Drive Mechanism to Lower Table Fully Into the Pool of Their Irradiator 2004-07-19T14:30:00 | |