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

SPERT-1 Special Power Excursion Test

SPERT-1 Special Power Excursion Test, a research reactor (tank) in Idaho Falls, ID, United States, with 1 W of thermal power, operated by Phillps Petroleum Company. Decommissioned, first critical in 1955.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 13 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). 36 tank-type reactors remain in operation today across 23 countries. Its declared uses include materials testing.

Country

United States

City

Idaho Falls, ID

Type

Tank

Thermal power

1 W

Operator

Phillps Petroleum Company

Status

Decommissioned

First criticality

1955

Purpose

Materials testing

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