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Italy Italy · Ispra · 45.815, 8.613 (approximate location)

ECO (Orgel Critical Experiment)

ECO (Orgel Critical Experiment), a research reactor (critical assembly) in Ispra, Italy, with 2 kW of thermal power, operated by Joint Research Centre Ispra. Shut down, 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). 44 critical assemblies remain in operation today across 12 countries. Its declared uses include innovative research, nuclear data measurements and materials testing.

Country
Italy
City
Ispra
Type
Critical assembly
Thermal power
2 kW
Operator
Joint Research Centre Ispra
Status
Shut down
First criticality
1965
Purpose
Innovative research, nuclear data, materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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