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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 47020 | 1 December 2008 04:00:00 | Agreement State | Agreement State Report - Misplacement of Three Polonium-210 Sources | The following information was received via fax: On 12/9/2008, the RSO reported that a recent source inventory showed three (Po-210 Static Eliminators) missing from their last known use location. Calculations estimate that they contain less than 10 micro Curies of Po-210 each. Efforts to locate the missing units are continuing. Training is being conducted to prevent recurrence. On 3/22/2010 the RSO reported that the three missing Po-210 static eliminators were located in July 2009. No reward offered. No press release issued. Incident Closed New York Event: NY-11-21 New York Incident: 664 | ||
| ENS 47019 | 1 May 2006 04:00:00 | Agreement State | Agreement State Report - Loss of Tritium and Carbon-14 Sources | The following report was received via fax: The licensee submitted a written report June 11, 2008 documenting the loss of 31 mCi of tritium and 0.6 mCi of carbon-14 which had been discovered missing in May 2008. In September 2004, an incoming scientist brought the materials with him to Wadsworth. Since he was not an authorized. user, the RSO placed the material in a freezer in the chemical storage room. In May 2008 the RSO discovered the materials missing and initiated a thorough investigation. Unfortunately the disposition of the materials remains unknown. The RSO has implemented corrective actions which include; better inventory practices, increased vigilance over materials in long term storage with an eye towards proper disposal, and no 'general' storage of materials. No reward offered. No press release issued. Incident Closed New York Event: NY-11-20 New York Incident: 619 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. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf This source is not amongst those sources or devices identified by the IAEA Code of Conduct for the Safety & Security of Radioactive Sources to be of concern from a radiological standpoint. Therefore is it being categorized as a less than Category 3 source |