ENS 42121
ENS Event | |
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19:50 Nov 5, 2005 | |
Title | Agreement State - Missing Am-241 Source |
Event Description | The University of Utah moved its Radiation Health Department between buildings. An Am-241 source on a disk in a glass vial was last inventoried and leak checked on May 12, 2005 i.e. prior to the move. The inventory on November 3, 2005 (Thursday) found one source missing. The sources are kept in a locked room and stored in a locked pig. The university is performing an inventory on November 5, 2005 (Saturday) and may perform additional inventories. This information will be placed in NMED on Monday, November 7, 2005.
Source: Am-241, 477 milliCuries
The Source is model # SWA-259, purchased January 1977 and is the size of a nickel.
Received notification from the licensee that a Radiation Safety Analyst found the missing Am-241 source at 11:07 MST on 11/07/05. An updated description was given as 1.5 inches long and wrapped in a sheet of lead. The RSO was present when the source was found. Notified R4DO (Shaffer), NMSS (Morell), and TAS email (Perez).
The State of Utah has determined that the update on 11/7/05 reporting that the missing source had been located was incorrect. Further investigation by the University of Utah authorities has determined that the original source description was correct. The source is a nickel-sized slug in a glass vial and not the 1.5 inch source discussed in the 11/7/05 update. Recollection by individuals that had used the source confirmed the source appearance and the discolored "darkened" vial that held the source. The source number was also corrected to SNA-259 The licensee has informed both campus police and the FBI of the missing material. Notified R4DO (Whitten), NMSS (Collins), and TAS (Perez) via email.
The State provided the following information via email: The State of Utah reports that the source has been found. This time verified and sure. It was found in a secure facility. It had rolled under a pallet in the secured waste facility. The investigation as to how it got there is continuing. Notified R4DO (Shaffer), NMSS (Collins), and TAS (Whitney) via email. 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 | |
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University Of Utah Salt Lake City, Utah (NRC Region 4) | |
License number: | UT1800001 |
Organization: | Utah Division Of Radiation Control |
Reporting | |
Agreement State | |
Time - Person (Reporting Time:+-3.53 h-0.147 days <br />-0.021 weeks <br />-0.00484 months <br />) | |
Opened: | Gwyn Galloway 16:18 Nov 5, 2005 |
NRC Officer: | Mark Abramovitz |
Last Updated: | Nov 11, 2005 |
42121 - NRC Website
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University of Utah with Agreement State | |
WEEKMONTHYEARENS 564662023-04-04T18:00:0004 April 2023 18:00:00
[Table view]Agreement State Leaking Source ENS 554822021-09-09T18:00:0009 September 2021 18:00:00 Agreement State Loss of Control of Radioactive Material ENS 526732017-04-10T06:00:00010 April 2017 06:00:00 Agreement State Agreement State Report - Leaking Tritium Exit Sign ENS 517142016-02-02T07:00:0002 February 2016 07:00:00 Agreement State Lost Tritium Exit Sign ENS 421212005-11-05T19:50:0005 November 2005 19:50:00 Agreement State Agreement State - Missing Am-241 Source ENS 419252005-08-04T18:30:0004 August 2005 18:30:00 Agreement State Agreement State Report - Medical Event 2023-04-04T18:00:00 | |