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Russia Russia · Moscow · 55.756, 37.618

UVPSh

UVPSh, a research reactor (subcritical assembly) in Moscow, Russia, operated by Moscow Engineering Physics Institute MEPhI. Operating, first critical in 1964.

It is one of the 57 research reactors operating in Russia, one of 6 zero-power assemblies among them. It went critical 18 years after the first research reactor in Russia, F-1 (1946). It is one of 20 subcritical assemblies operating worldwide, spread across 13 countries. Its declared uses include teaching.

Country
Russia
City
Moscow
Type
Subcritical assembly
Thermal power
critical
Operator
Moscow Engineering Physics Institute MEPhI
Status
Operating
First criticality
1964
Purpose
Teaching

Data: IAEA RRDB · updated on Sep 3, 2026

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