ENS 51594

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v t e ENS Event
17:00 Dec 8, 2015
Title	Irradiator Equipment Failure
Event Description	At approximately noon on December 8, 2015, the source located inside the right side of the J. L. Shepherd Model 81-24Q Beam Irradiator didn't move upward from its normal down shielded position to the normal operational position when the operator pressed the button on the operation console. A second attempt was made to have the source be raised to its normal operational position, but the source remained at its normal down shielded position. An emergency shutter built into the system was deployed just as a precaution. Facility Manager notified the Radiation Safety Officer in the Radiation Protection Office (RPO). Upon entering the room, it was noted that the source position indicator found on the operating tower mounted on the top of the irradiator showed that the source was located at its normal down shielded position in the irradiator. RPO staff conducted a radiation survey surrounding the irradiator and found that all readings were similar to levels noted in previous surveys conducted when the sources in the irradiator were in their shielding position and the highest reading was noted as 1 mR/hr on contact with the irradiator. Contact was made to J. L. Shepherd and arrangements are being made to have a representative come onsite to conduct an evaluation of the system. Arrangements are being made to have that evaluation be conducted during the week of December 14th and the Radiation Safety Officer has given direction for the irritator to not be used until this evaluation by the manufacture can be conducted. No personnel exposures were reported.

ENS 51594 +/-
Where
Nasa Goddard Greenbelt, Maryland (NRC Region 1)
License number:	19-05748-03
Organization:	Nasa Goddard
Reporting

10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure
Time - Person (Reporting Time:+16.08 h0.67 days <br />0.0957 weeks <br />0.022 months <br />)
Opened:	Dan Simpson 09:05 Dec 9, 2015
NRC Officer:	Dong Park
Last Updated:	Dec 9, 2015
51594 - NRC Website
v • d • e

v t e Emergency Notification System
Nasa Goddard with 10 CFR 30.50(b)(2)
WEEKMONTHYEAR2015-12-08T17:00:00 [Table view]
[ENS list for Nasa Goddard]

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