26 septembre 2014
HED LLC a reçu un tube contenant 4,625 milliards de Bq de krypton 85 dans un cylindre agréé pour seulement 0.185 milliards de Bq. Lors de l’évacuation du contenu dans une chambre, la dépressurisation ayant été insuffisante, tout le gaz est parti dans l’atmosphère. Des investigations sont en cours pour éclaircir ce problème.
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Event Number : 50499
Rep Org : HIGH ENERGY DEVICES, LLC Licensee : HIGH ENERGY DEVICES, LLC
Region : 3 - City : BRIDGETON State : MO
Event Date : 09/26/2014 - Event Time : 16:00
Emergency Class : NON EMERGENCY 10 CFR Section : 20.2202(b)(2) - EXCESSIVE RELEASE
Event Text
RELEASE OF KRYPTON -85
The licensee received 125 millicuries of Krypton-85 in a cylinder that was in excess of their license limit. The license limit is 5 millicuries. During an experiment to transfer the Krypton-85 to an evacuation chamber, the chamber did not pressurize as expected, and all 125 millicuries of Krypton-85 was evacuated to atmosphere. The licensee is still investigating the incident and will provide additional information when it becomes available.
* * * UPDATE PROVIDED BY JOSEPH KOCH TO JEFF ROTTON AT 0835 ON 10/07/2014 * * *
Licensee provided correction to the original report. Event date was 09/26/2014 at 1600 CDT.
Notified R3DO (Orlikowski), FSME (McIntosh) and FSME Events Resource via email.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2014/20141009en.html#en50499
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