ENS 45272
ENS Event | |
|---|---|
07:00 Aug 6, 2009 | |
| Title | Agreement State Report - Nine Missing Po-210 and Pm-147 Sealed Sources |
| Event Description | On 19 June 2009, TTM Technologies in Redmond was contacted as part of a routine check of their inventory of generally licensed devices. It was discovered at this time that the facility was closing and that the gauges and static eliminators had been sent to TTM Technologies facilities in other states. TTM Technologies has since tracked down as many of the missing devices as possible. Those facilities that have received sources have been informed of the reporting requirements and regulations surrounding those generally licensed devices. NRD, Inc. was contacted to see if any of the remaining unaccounted for sources had been returned to them. They have not been. The remaining missing sources are being reported as lost.
This report lists eight devices/sources. A ninth device/source (exactly the same as number 8 except for the serial number) is being included here instead. This device/source is serial number A2CK423. Seven of the nine devices/sources are Po-210 static eliminators and have gone through more than ten half-lives. The other two devices are sources of Pm-147 in beta backscatter gauges and have gone through approximately 8 half-lives. It is therefore concluded that the missing sources are of little threat to human health and safety. Source of Radiation: Source Number: 1 Form of Radioactive Material: SEALED SOURCE Radionuclide: PM-147 Source Use: OTHER Activity:0.9E-3 Ci 0.0333 GBq Manufacturer: OXFORD INSTRUMENT Model Number: GM-1 Serial Number: 75125P Source Number: 2 Form of Radioactive Material: SEALED SOURCE Radionuclide: PM-147 Source Use: OTHER Activity:0.6E-3 Ci 0.0222 GBq Manufacturer: OXFORD INSTRUMENT Model Number: GM-1 Serial Number: 65986P Source Number: 3 Form of Radioactive Material: SEALED SOURCE Radionuclide: PO-210 Source Use: STATIC ELIMINATOR Activity:0.05513 Ci 2.03981 GBq Manufacturer: NRD, INC Model Number: P-2001 Serial Number: A2EA910 Source Number: 4 Form of Radioactive Material: SEALED SOURCE Radionuclide: PO-210 Source Use: STATIC ELIMINATOR Activity:0.05513 Ci 2.03981 GBq Manufacturer: NRD, INC Model Number: P-2001 Serial Number: A2BM653 Source Number: 5 Form of Radioactive Material: SEALED SOURCE Radionuclide: PO-210 Source Use: STATIC ELIMINATOR Activity:0.05513 Ci 2.03981 GBq Manufacturer: NRD, INC Model Number: P-2021 Serial Number: A2DY847 Source Number: 6 Form of Radioactive Material: SEALED SOURCE Radionuclide: PO-210 Source Use: STATIC ELIMINATOR Activity:0.010 Ci 0.37 GBq Manufacturer: NRD, INC Model Number: P-2021 Serial Number: A2CE789 Source Number: 7 Form of Radioactive Material: SEALED SOURCE Radionuclide: PO-210 Source Use: STATIC ELIMINATOR Activity:0.010 Ci 0.37 GBq Manufacturer: NRD, INC Model Number: P-2021 Serial Number: A2BM653 Source Number: 8 Form of Radioactive Material: SEALED SOURCE Radionuclide: PO-210 Source Use: STATIC ELIMINATOR Activity:0.010 Ci 0.37 GBq Manufacturer: NRD, INC Model Number: P-2021 Serial Number: A2CK423 Corrective Actions: 1 Personnel received additional training. Washington state reporting requirement WAC 246-221-240 Washington Report No: WA090061 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. |
| Where | |
|---|---|
| Ttm Technologies Redmond, Washington (NRC Region 4) | |
| License number: | R0012 |
| Organization: | Wa Division Of Radiation Protection |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+293.55 h12.231 days <br />1.747 weeks <br />0.402 months <br />) | |
| Opened: | Brandin Ketter 12:33 Aug 18, 2009 |
| NRC Officer: | John Knoke |
| Last Updated: | Aug 18, 2009 |
| 45272 - NRC Website | |
Ttm Technologies with Agreement State | |
WEEKMONTHYEARENS 462392010-09-09T21:50:0009 September 2010 21:50:00
[Table view]Agreement State Missing Tritium Exit Sign ENS 452722009-08-06T07:00:0006 August 2009 07:00:00 Agreement State Agreement State Report - Nine Missing Po-210 and Pm-147 Sealed Sources 2010-09-09T21:50:00 | |