Italy Italy · Milan · 45.467, 9.190

L-54M

L-54M, a research reactor (homogeneous) in Milan, Italy, with 50 kW of thermal power, operated by Int. Ingegneria Nucleare. Shut down, first critical in 1959.

It was one of the 18 research reactors Italy has had; 5 remain in operation today. It was among the first research reactors in Italy, going critical in 1959 alongside 2 others. 15 homogeneous reactors remain in operation today across 6 countries.

Country
Italy
City
Milan
Type
Homogeneous
Thermal power
50 kW
Operator
Int. Ingegneria Nucleare
Status
Shut down
First criticality
1959

Data: IAEA RRDB · updated on Sep 3, 2026

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