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Pool Test Reactor (PTR) was a 10 kWt light water moderated pool-type reactor fueled with highly enriched uranium built at Chalk River in 1957. It was shut down and defueled in 1990.  External links. Atomic. — “Pool Test Reactor - Wikipedia, the free encyclopedia”, en.wikipedia.org
Shortly after the December 1942 demonstration of the first self-sustaining chain reaction at the University of Chicago, the research group lead by Enrico Fermi needed to move to a larger, more remote laboratory campus. The reactors were defueled and the concrete shell for CP-3 was imploded and buried. — “Site A/Plot M Disposal Site - Wikipedia, the free encyclopedia”, en.wikipedia.org
Jump to: navigation, search. Neely Nuclear Research Center. Coordinates. 33°46′47′′N 84°23′53′′W / 33.779609°N 84.39815°W / 33.779609; -84.39815 Coordinates: 33°46′47′′N 84° shut down in 1988 due to safety concerns, and was defueled due to safety concerns related to the nearby 1996 Summer Olympics. — “Neely Nuclear Research Center - Wikipedia, the free encyclopedia”, en.wikipedia.org