ENS 52185

v t e ENS Event
20:15 Aug 15, 2016
Title	Irradiator Safety Equipment Failure
Event Description	The NIST (National Institute of Standards and Technology) irradiator has several Cs-137 sources used to calibrate instruments. During a calibration process, a 3.6 Ci source did not return to its shielded position. The event occurred in a portion of the building where such events are expected, therefore there were no health or safety consequences to employees, public or the environment. Licensee corrective actions include manually installing a lead plug into the beam port (opening) of the irradiator. The licensee is contacting the manufacturer in order to assist with troubleshooting and repairs. The irradiator (Model 81-12; JL Shepherd; S/N 7132) is currently in a safe and stable configuration. It is noted that the irradiator is NOT a Part 36 irradiator.

ENS 52185 +/-
Where
Nist Gaithersburg, Maryland (NRC Region 1)
License number:	SNM-362
Organization:	Nist
Reporting

10 CFR 70.50(b)(2)
Time - Person (Reporting Time:+19.58 h0.816 days <br />0.117 weeks <br />0.0268 months <br />)
Opened:	Tom Obrien 15:50 Aug 16, 2016
NRC Officer:	Vince Klco
Last Updated:	Aug 16, 2016
52185 - NRC Website
v • d • e

v t e Emergency Notification System
Nist with 10 CFR 70.50(b)(2)
WEEKMONTHYEAR2016-08-15T20:15:00 [Table view]
[ENS list for Nist]

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