ML-1 Mobile Low Power Reactor
ML-1 Mobile Low Power Reactor, a research reactor (other) in Idaho Falls, ID, United States, with 3.3 MW of thermal power, operated by Aerojet General Nucleonics. Decommissioned, first critical in 1961.
It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 19 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). Its declared uses include nuclear data measurements and materials testing.
- Country
- United States
- City
- Idaho Falls, ID
- Type
- Other
- Thermal power
- 3.3 MW
- Operator
- Aerojet General Nucleonics
- Status
- Decommissioned
- First criticality
- 1961
- Purpose
- Nuclear data, materials testing
See also: every research reactor in United States · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026