ENS Event | |
|---|---|
05:00 May 4, 2005 | |
| Title | Loss of 100 Mg of Plutonium/Beryllium Sealed Source |
| Event Description | The Minnesota State University provided notification of a lost sealed source from the radiation facility. The source was a 100mg Pu/Be (6 milliCuries) (Serial # M-1202), and used primarily in the State University laboratory for teaching purposes. In 1962 an inventory was taken and documented that 2 sources (10 gram and 100 mg) were stored in a barrel and shielded in paraffin. Somewhere over the years it was understood that only one 10.1 gram source was in the barrel. When the licensee moved from one facility to another in 1973, no detailed inventory was taken of the contents in the barrel.
On 05/04/05 the sealed sources were being reclaimed by Los Alamos and when the paperwork was checked against the actual contents it was noted that the 100mg sealed source was missing. A thorough search by licensee of their facility did not find any evidence of the missing source. The source dimension is 1.75 " long and 1.25 " in diameter.
|
| Where | |
|---|---|
| Mn State Univ At Mankato Minnesota (NRC Region 3) | |
| License number: | SNM-397 |
| Organization: | Mn State Univ At Mankato |
| Reporting | |
| 10 CFR 20.2201(a)(1)(i) | |
| Time - Person (Reporting Time:+148.73 h6.197 days <br />0.885 weeks <br />0.204 months <br />) | |
| Opened: | Mike Peters 09:44 May 10, 2005 |
| NRC Officer: | John Knoke |
| Last Updated: | May 12, 2005 |
| 41684 - NRC Website | |
Mn State Univ At Mankato with 10 CFR 20.2201(a)(1)(i) | |
WEEKMONTHYEARENS 416842005-05-04T05:00:0004 May 2005 05:00:00
[Table view]10 CFR 20.2201(a)(1)(i) Loss of 100 Mg of Plutonium/Beryllium Sealed Source 2005-05-04T05:00:00 | |