ES
Italy Italy · Rome · 41.893, 12.483 (approximate location)

RITMO Reactor (RC-4)

RITMO Reactor (RC-4), a research reactor (pool) in Rome, Italy, with 10 W of thermal power, operated by ENEA Casaccia Research Centre. Decommissioned, first critical in 1965.

It was one of the 18 research reactors Italy has had; 5 remain in operation today. It went critical 6 years after the first research reactor in Italy, Avogadro RS-1 (1959). 48 pool-type reactors remain in operation today across 28 countries. Its declared uses include innovative research.

Country
Italy
City
Rome
Type
Pool
Thermal power
10 W
Operator
ENEA Casaccia Research Centre
Status
Decommissioned
First criticality
1965
Purpose
Innovative research

Data: IAEA RRDB · updated on Sep 3, 2026

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