Russia · Elektrostal · 55.783, 38.467

UG Rig

UG Rig, a research reactor (critical assembly) in Elektrostal, Russia, with 30 W of thermal power, operated by OJSC Machine Building Plant. Decommissioned, first critical in 1967.

It was one of the 123 research reactors Russia has had; 57 remain in operation today. It went critical 21 years after the first research reactor in Russia, F-1 (1946). 44 critical assemblies remain in operation today across 12 countries.

Country

Russia

City

Elektrostal

Type

Critical assembly

Thermal power

30 W

Operator

OJSC Machine Building Plant

Status

Decommissioned

First criticality

1967

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