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

Super Kukla

Super Kukla, a research reactor (fast) in Las Vegas, NV, United States, with 1 W of thermal power, operated by Lawrence Livermore National Laboratory. Decommissioned, first critical in 1964.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 22 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). 15 fast research reactors remain in operation today across 6 countries. Its declared uses include materials testing.

Country
United States
City
Las Vegas, NV
Type
Fast
Thermal power
1 W
Operator
Lawrence Livermore National Laboratory
Status
Decommissioned
First criticality
1964
Purpose
Materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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