ENS 47750

v t e ENS Event
20:30 Mar 15, 2012
Title	Agreement State Report - Radiography Camera Stuck Source
Event Description	The following information was provided by the State of Minnesota via email: Braun Intertec was performing radiography on a valve in a pit at a temporary jobsite. The camera was a model QSA 680 SN: A334 with a 29 Ci Co-60 source model 424-14 SN: 2905. When cranking out the source after about 10-15 revolutions the controls went free; the radiographer could not crank the source back in. The barrier around the worksite was set at <2mR/hr, so the barrier was maintained. The RSO (Radiation Safety Officer) and Corporate RSO were notified and responded to the site. They suspected the drive cable went past the controls. They disconnected the conduit from the controls and were able to use a tool to grab the end of the drive cable and pull back through until the source was back to the shielded position. The exposure level at the crank during the retrieval was <1 mR/hr, and the operation took about 20 min. The RSO and Corporate RSO did not receive a measurable dose during the operation. The two radiographers on site received 4 mR and 2 mR for the shift, not necessarily from the disconnect or retrieval. Minnesota Department of Health Report #MN120004

ENS 47750 +/-
Where
Braun Welch, Minnesota (NRC Region 3)
License number:	1082-103-27
Organization:	Minnesota Department Of Health
Reporting

Agreement State
Time - Person (Reporting Time:+19.23 h0.801 days <br />0.114 weeks <br />0.0263 months <br />)
Opened:	Brandon Juran 15:44 Mar 16, 2012
NRC Officer:	John Shoemaker
Last Updated:	Mar 16, 2012
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Braun Intertec Corporation with Agreement State
WEEKMONTHYEAR2025-10-02T19:50:00 [Table view]
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