ENS 54964
ENS Event | |
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04:00 Oct 20, 2020 | |
Title | Missing Licensed Material |
Event Description | The following information was received from the Commonwealth of Pennsylvania via email:
On October 20, 2020 the licensee discovered a lost gadolinium-153 source. This source, Eckert and Ziegler Model NES8412, is an attenuation correction source in a SPECT camera. These sources are sold in pairs, and the serial numbers for the pair are R3-129 and R3-130. Only one is missing and it is unknown which it is currently. The licensee believes the sources were present in mid-June when the source holders were removed from the gamma camera in preparation for scrapping. The licensee is investigating to confirm that is true. The sources were nominally 250 mCi (+20%/-10%) each on March 1, 2019. The activity on June 15, 2020 was calculated to be 64 mCi, and on the date of discovery 44 mCi. The licensee has notified its facility and safety staff and is actively searching for the source. The DEP [Department of Environmental Protection] has been in contact with the licensee and will update this event as soon as more information is provided. PA incident no.: PA200022 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 |
Where | |
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University Of Pennsylvania Philadelphia, Pennsylvania (NRC Region 1) | |
License number: | PA-0131 |
Organization: | Pa Bureau Of Radiation Protection |
Reporting | |
Agreement State | |
Time - Person (Reporting Time:+35.98 h1.499 days <br />0.214 weeks <br />0.0493 months <br />) | |
Opened: | John Chippo 15:59 Oct 21, 2020 |
NRC Officer: | Brian Lin |
Last Updated: | Oct 21, 2020 |
54964 - NRC Website
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University of Pennsylvania with Agreement State | |
WEEKMONTHYEARENS 570812024-04-17T04:00:00017 April 2024 04:00:00
[Table view]Agreement State Medical Underdose ENS 566612023-08-05T15:07:0005 August 2023 15:07:00 Agreement State Medical Underdose ENS 570862023-01-31T04:00:00031 January 2023 04:00:00 Agreement State Medical Event ENS 570852022-12-29T04:00:00029 December 2022 04:00:00 Agreement State Medical Event ENS 570842022-12-28T04:00:00028 December 2022 04:00:00 Agreement State Medical Event ENS 558892022-05-04T04:00:0004 May 2022 04:00:00 Agreement State Underdose ENS 558512022-04-18T04:00:00018 April 2022 04:00:00 Agreement State Patient Underdose ENS 553372021-07-02T04:00:0002 July 2021 04:00:00 Agreement State Patient Under Dose ENS 549642020-10-20T04:00:00020 October 2020 04:00:00 Agreement State Missing Licensed Material ENS 534302018-05-25T04:00:00025 May 2018 04:00:00 Agreement State En Revision Imported Date 10/15/2018 ENS 525042017-01-19T05:00:00019 January 2017 05:00:00 Agreement State Agreement State Report - Received Dose Less than Prescribed Dose ENS 524572016-12-20T05:00:00020 December 2016 05:00:00 Agreement State Agreement State Report - Medical Underdose ENS 483032012-09-11T04:00:00011 September 2012 04:00:00 Agreement State Agreement State Report - Patient Underexposure Using Yttrium-90 Sir-Spheres Treatment ENS 482292012-08-23T04:00:00023 August 2012 04:00:00 Agreement State Agreement State Report - Patient Underexposure Using Yttrium-90 Sir-Spheres Treatment ENS 481372012-07-26T04:00:00026 July 2012 04:00:00 Agreement State Agreement State Report - Medical Event Involving an Underdose with Yttrium-90 Spheres ENS 477632012-03-20T04:00:00020 March 2012 04:00:00 Agreement State Agreement State Report - Underdose During Liver Disease Treatment ENS 474352011-11-10T12:00:00010 November 2011 12:00:00 Agreement State Agreement State Report - Underdosage of Theraspheres ENS 461012010-07-07T04:00:0007 July 2010 04:00:00 Agreement State Agreement State Report - Delivered Dose Differed from the Prescribed Dose by Greater than 50% ENS 457272010-01-21T05:00:00021 January 2010 05:00:00 Agreement State Agreement State Report - Brachytherapy Implants Outside of the Intended Treatment Area 2024-04-17T04:00:00 | |