Italy Italy · Pavia · 45.185, 9.154 (approximate location)

SM-1 Subcritical Assembly

SM-1 Subcritical Assembly, a research reactor (subcritical assembly) in Pavia, Italy, operated by University of Pavia. Operating, first critical in 1961.

It is one of the 5 research reactors operating in Italy, the only zero-power assembly among them. It went critical 2 years after the first research reactor in Italy, Avogadro RS-1 (1959). It is one of 20 subcritical assemblies operating worldwide, spread across 13 countries. Its declared uses include teaching.

Country
Italy
City
Pavia
Type
Subcritical assembly
Thermal power
critical
Operator
University of Pavia
Status
Operating
First criticality
1961
Purpose
Teaching

Data: IAEA RRDB · updated on Sep 3, 2026

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