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United States United States · Las Vegas, NV · 36.167, -115.149 (approximate location)

Kiwi-TNT

Kiwi-TNT, a research reactor (other) in Las Vegas, NV, United States, with 937 MW of thermal power, operated by Los Alamos Scientific Laboratory. Decommissioned, first critical in 1965.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 23 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). Its declared uses include nuclear data measurements.

Country
United States
City
Las Vegas, NV
Type
Other
Thermal power
937 MW
Operator
Los Alamos Scientific Laboratory
Status
Decommissioned
First criticality
1965
Purpose
Nuclear data

Data: IAEA RRDB · updated on Sep 3, 2026

More information

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