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On 12/13/10 at 1500 EST, North Carolina St … On 12/13/10 at 1500 EST, North Carolina State University (NCSU) was conducting routine radiography with the reactor at 1MW when unknown to the technician, the shutter stuck open. The technician entered the shielded room and noticed the shutter wasn't closed and immediately left the exposure room. After the technician left the room and secured the area, he notified other personnel including the control room. NCSU reports that the reactor was shut down by the operator because of this event. After the reactor was shut down, personnel entered the room and closed the shutter. The shutter door interlock had malfunctioned due to a mechanical interference. It was noted that the technician was not wearing personal dosimetry. NCSU estimates (based on cameras and a re-enactment conducted with the technician) that the technician was exposed for a maximum of 18 seconds with a resulting dose rate of about 150 mRem. </br>NCSU corrective actions include a research reactor shutdown, closing of the radiography shutter, installing interlocks to prevent shielded room access with the shutter not fully closed, and safety training of personnel related to use of the radiography facility.</br>NCSU is making this report in accordance with their research reactor technical specifications.research reactor technical specifications. +
20:00:00, 13 December 2010 +
46,484 +
16:24:00, 15 December 2010 +
20:00:00, 13 December 2010 +
On 12/13/10 at 1500 EST, North Carolina St … On 12/13/10 at 1500 EST, North Carolina State University (NCSU) was conducting routine radiography with the reactor at 1MW when unknown to the technician, the shutter stuck open. The technician entered the shielded room and noticed the shutter wasn't closed and immediately left the exposure room. After the technician left the room and secured the area, he notified other personnel including the control room. NCSU reports that the reactor was shut down by the operator because of this event. After the reactor was shut down, personnel entered the room and closed the shutter. The shutter door interlock had malfunctioned due to a mechanical interference. It was noted that the technician was not wearing personal dosimetry. NCSU estimates (based on cameras and a re-enactment conducted with the technician) that the technician was exposed for a maximum of 18 seconds with a resulting dose rate of about 150 mRem. </br>NCSU corrective actions include a research reactor shutdown, closing of the radiography shutter, installing interlocks to prevent shielded room access with the shutter not fully closed, and safety training of personnel related to use of the radiography facility.</br>NCSU is making this report in accordance with their research reactor technical specifications.research reactor technical specifications. +
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, 15 December 2010 +
R-120 +
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>.
22:28:58, 24 September 2017 +
16:24:00, 15 December 2010 +
1.85 d (44.4 hours, 0.264 weeks, 0.0608 months) +
20:00:00, 13 December 2010 +
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.