TOPAZ
TOPAZ, a research reactor (other) in Obninsk, Russia, with 150 kW of thermal power, operated by Institute of Physics and Power Engineering. Decommissioned, first critical in 1966.
It was one of the 123 research reactors Russia has had; 57 remain in operation today. It went critical 20 years after the first research reactor in Russia, F-1 (1946).
- Country
- Russia
- City
- Obninsk
- Type
- Other
- Thermal power
- 150 kW
- Operator
- Institute of Physics and Power Engineering
- Status
- Decommissioned
- First criticality
- 1966
See also: every research reactor in Russia · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026