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The following information was provided by … The following information was provided by the Minnesota Department of Health (MDH) via email:</br>The radiation safety officer (RSO) was attempting to lock-out an Ohmart, Cs-137 fixed gauge when they found that the shutter was stuck open. The RSO stated that while trying to close the shutter, they chipped it. At that point, they removed the gauge and attempted to close the shutter in their workshop and were still unsuccessful. The RSO stated that, during continued attempts to close the shutter, they further damaged the shutter. At this point, the RSO fixed a 6-inch steel plate over the beam and put the device in storage. The RSO took surveys and determined the source was adequately shielded. The device will remain in storage, and the gauge manufacturer will be consulted for next steps.</br>The RSO reported the event to MDH at approximately 1200 CDT on October 9, 2025.</br>Manufacturer: Ohmart</br>Model: unknown at this time</br>Source: Cs-137</br>Activity: approximately 80 millicuries</br>Minnesota Event ID: MN2500070 millicuries
Minnesota Event ID: MN250007 +
12:00:00, 9 October 2025 +
16:23:00, 9 October 2025 +
12:00:00, 9 October 2025 +
The following information was provided by … The following information was provided by the Minnesota Department of Health (MDH) via email:</br>The radiation safety officer (RSO) was attempting to lock-out an Ohmart, Cs-137 fixed gauge when they found that the shutter was stuck open. The RSO stated that while trying to close the shutter, they chipped it. At that point, they removed the gauge and attempted to close the shutter in their workshop and were still unsuccessful. The RSO stated that, during continued attempts to close the shutter, they further damaged the shutter. At this point, the RSO fixed a 6-inch steel plate over the beam and put the device in storage. The RSO took surveys and determined the source was adequately shielded. The device will remain in storage, and the gauge manufacturer will be consulted for next steps.</br>The RSO reported the event to MDH at approximately 1200 CDT on October 9, 2025.</br>Manufacturer: Ohmart</br>Model: unknown at this time</br>Source: Cs-137</br>Activity: approximately 80 millicuries</br>Minnesota Event ID: MN2500070 millicuries
Minnesota Event ID: MN250007 +
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, 10 October 2025 +
1088 +
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>.
11:20:04, 17 October 2025 +
16:23:00, 9 October 2025 +
0.183 d (4.38 hours, 0.0261 weeks, 0.006 months) +
12:00:00, 9 October 2025 +
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.