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The following information was provided by … The following information was provided by the State of Minnesota via email:</br>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.</br>Minnesota Department of Health Report #MN120004
Minnesota Department of Health Report #MN120004 +
20:30:00, 15 March 2012 +
47,750 +
15:44:00, 16 March 2012 +
20:30:00, 15 March 2012 +
The following information was provided by … The following information was provided by the State of Minnesota via email:</br>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.</br>Minnesota Department of Health Report #MN120004
Minnesota Department of Health Report #MN120004 +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 16 March 2012 +
1082-103-27 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
22:25:41, 24 September 2017 +
15:44:00, 16 March 2012 +
0.801 d (19.23 hours, 0.114 weeks, 0.0263 months) +
20:30:00, 15 March 2012 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.