United States · Idaho Falls, ID · 43.533, -112.945 (approximate location)

A1W Prototype Reactor

A1W Prototype Reactor, a research reactor (other) in Idaho Falls, ID, United States, operated by Battelle Energy Alliance, LLC. Shut down, first critical in 1958.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 16 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). Its declared uses include research, development and experiments.

Country

United States

City

Idaho Falls, ID

Type

Other

Thermal power

critical

Operator

Battelle Energy Alliance, LLC

Status

Shut down

First criticality

1958

Purpose

Research, development, and experiments

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