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

AFSR Argonne Fast Source

AFSR Argonne Fast Source, a research reactor (fast) in Idaho Falls, ID, United States, with 1 kW of thermal power, operated by Argonne West National Laboratory. 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). 15 fast research reactors remain in operation today across 6 countries.

Country

United States

City

Idaho Falls, ID

Type

Fast

Thermal power

1 kW

Operator

Argonne West National Laboratory

Status

Decommissioned

First criticality

1959

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