United States · Los Alamos, NM · 35.893, -106.300 (approximate location)

LOPO Low Power Boiler

LOPO Low Power Boiler, a research reactor (homogeneous) in Los Alamos, NM, United States, with 1 W of thermal power, operated by Los Alamos Scientific Laboratory. Decommissioned, first critical in 1944.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 2 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). 15 homogeneous reactors remain in operation today across 6 countries.

Country

United States

City

Los Alamos, NM

Type

Homogeneous

Thermal power

1 W

Operator

Los Alamos Scientific Laboratory

Status

Decommissioned

First criticality

1944

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