WWR-M
WWR-M, a research reactor (tank) in Gatchina, Russia, with 18 MW of thermal power, operated by Petersburg Nuclear Physics Institute. Temporary shutdown, first critical in 1959.
By thermal power it ranks sixth among the 57 research reactors operating in Russia. It went critical 13 years after the first research reactor in Russia, F-1 (1946). It is one of 36 tank-type reactors operating worldwide, spread across 23 countries. Its declared uses include isotope production, neutron scattering, silicon doping and transmutation.
- Country
- Russia
- City
- Gatchina
- Type
- Tank
- Thermal power
- 18 MW
- Operator
- Petersburg Nuclear Physics Institute
- Status
- Temporary shutdown
- First criticality
- 1959
- Purpose
- Isotope production, neutron scattering, silicon doping, transmutation, gemstone irradiation, training, activation analysis, geochronology, materials testing
See also: every research reactor in Russia · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026