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

MTR

MTR, a research reactor (tank) in Idaho Falls, ID, United States, with 40 MW of thermal power, operated by Idaho National Laboratory. Decommissioned, first critical in 1952.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 10 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

40 MW

Operator

Idaho National Laboratory

Status

Decommissioned

First criticality

1952

Purpose

Materials testing

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