Russia · Obninsk · 55.093, 36.611

BR-5

BR-5, a research reactor (fast) in Obninsk, Russia, with 5 MW of thermal power, operated by Institute of Physics and Power Engineering. Decommissioned, first critical in 1958.

It was one of the 123 research reactors Russia has had; 57 remain in operation today. It went critical 12 years after the first research reactor in Russia, F-1 (1946). 15 fast research reactors remain in operation today across 6 countries.

Country

Russia

City

Obninsk

Type

Fast

Thermal power

5 MW

Operator

Institute of Physics and Power Engineering

Status

Decommissioned

First criticality

1958

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