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United States United States · Oak Ridge, TN · 36.013, -84.263 (approximate location)

Latin American Demo Reactor

Latin American Demo Reactor, a research reactor (pool) in Oak Ridge, TN, United States, with 10 kW of thermal power, operated by Oak Ridge National Laboratory. Decommissioned, first critical in 1969.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 27 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). 48 pool-type reactors remain in operation today across 28 countries.

Country
United States
City
Oak Ridge, TN
Type
Pool
Thermal power
10 kW
Operator
Oak Ridge National Laboratory
Status
Decommissioned
First criticality
1969

Data: IAEA RRDB · updated on Sep 3, 2026

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