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United States United States · Windsor, CT · 41.888, -72.712

S1C Prototype

S1C Prototype, a research reactor (other) in Windsor, CT, United States, operated by Knolls Atomic Power Laboratory-Windsor Site. Decommissioned, first critical in 1959.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 17 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). Its declared uses include teaching and training.

Country
United States
City
Windsor, CT
Type
Other
Thermal power
critical
Operator
Knolls Atomic Power Laboratory-Windsor Site
Status
Decommissioned
First criticality
1959
Purpose
Teaching, training

Data: IAEA RRDB · updated on Sep 3, 2026

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