United States United States · Los Angeles · 34.052, -118.244 (approximate location)

UCLA R1

UCLA R1, a research reactor (other) in Los Angeles, United States, with 100 kW of thermal power, operated by UCLA, Nuclear Engineering Laboratory. Decommissioned, first critical in 1960.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 18 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). Its declared uses include teaching and materials testing.

Country
United States
City
Los Angeles
Type
Other
Thermal power
100 kW
Operator
UCLA, Nuclear Engineering Laboratory
Status
Decommissioned
First criticality
1960
Purpose
Teaching, materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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