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Argentina Argentina · San Martín, Buenos Aires · -34.571, -58.511

RA-1 Enrico Fermi Reactor

RA-1 Enrico Fermi Reactor, a research reactor (tank) in San Martín, Buenos Aires, Argentina, with 40 kW of thermal power, operated by Comision Nacional de Energia Atomica (CNEA). Operating, first critical in 1958.

By thermal power it ranks third among the 5 research reactors operating in Argentina. It was the first research reactor in Argentina to go critical and is still operating 68 years later. It is one of 36 tank-type reactors operating worldwide, spread across 23 countries. Its declared uses include teaching, training and activation analysis.

Country
Argentina
City
San Martín, Buenos Aires
Type
Tank
Thermal power
40 kW
Operator
Comision Nacional de Energia Atomica (CNEA)
Status
Operating
First criticality
1958
Purpose
Teaching, training, activation analysis

Data: IAEA RRDB · updated on Sep 3, 2026

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