United States · Oak Ridge, TN · 35.930, -84.310

TSR-II Tower Shielding

TSR-II Tower Shielding, a research reactor (tank) in Oak Ridge, TN, United States, with 1 MW of thermal power, operated by Lockheed Martin Energy Systems. Shut down, first critical in 1960.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 18 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

Oak Ridge, TN

Type

Tank

Thermal power

1 MW

Operator

Lockheed Martin Energy Systems

Status

Shut down

First criticality

1960

Purpose

Materials testing

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