Russia · Obninsk · 55.093, 36.611

MATR-2

MATR-2, a research reactor (critical assembly) in Obninsk, Russia, with 400 W of thermal power, operated by Institute of Physics and Power Engineering. Shut down, first critical in 1963.

It was one of the 123 research reactors Russia has had; 57 remain in operation today. It went critical 17 years after the first research reactor in Russia, F-1 (1946). 44 critical assemblies remain in operation today across 12 countries.

Country

Russia

City

Obninsk

Type

Critical assembly

Thermal power

400 W

Operator

Institute of Physics and Power Engineering

Status

Shut down

First criticality

1963

See also: every research reactor in Russia · How research reactors work