United States · Idaho Falls, ID · 43.494, -112.006 (approximate location)

S5G Submarine Prototype

S5G Submarine Prototype, a research reactor (other) in Idaho Falls, ID, United States, with 90 kW of thermal power, operated by Idaho National Laboratory. Shut down, first critical in 1965.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 23 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). Its declared uses include training.

Country

United States

City

Idaho Falls, ID

Type

Other

Thermal power

90 kW

Operator

Idaho National Laboratory

Status

Shut down

First criticality

1965

Purpose

Training

See also: every research reactor in United States · How research reactors work