United States United States · Charleston, SC · 32.916, -80.024 (approximate location)

MTS-635

MTS-635, a research reactor (other) in Charleston, SC, United States, with 78 MW of thermal power, operated by Nuclear Power Training Unit Charleston. 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). Its declared uses include teaching and training.

Country
United States
City
Charleston, SC
Type
Other
Thermal power
78 MW
Operator
Nuclear Power Training Unit Charleston
Status
Decommissioned
First criticality
1964
Purpose
Teaching, training

Data: IAEA RRDB · updated on Sep 3, 2026

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