United States · Las Vegas, NV · 36.167, -115.149 (approximate location)

SPR III

SPR III, a research reactor (fast) in Las Vegas, NV, United States, with 10 kW of thermal power, operated by Los Alamos National Security. Shut down, first critical in 1975.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 33 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. Its declared uses include materials testing.

Country

United States

City

Las Vegas, NV

Type

Fast

Thermal power

10 kW

Operator

Los Alamos National Security

Status

Shut down

First criticality

1975

Purpose

Materials testing

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