ES
Brazil Brazil · Sao Paulo · -23.550, -46.633 (approximate location)

IPEN/MB-01

IPEN/MB-01, a materials test reactor (MTR) in Sao Paulo, Brazil, with 100 W of thermal power, operated by Ipen, Cidade Universitaria. Operating, first critical in 1988.

By thermal power it ranks fourth among the 4 research reactors operating in Brazil. It went critical 31 years after the first research reactor in Brazil, IEA-R1 (1957). It is one of 5 materials test reactors (MTR) operating worldwide, spread across 5 countries. Its declared uses include teaching, training and materials testing.

Country
Brazil
City
Sao Paulo
Type
Materials test reactor (MTR)
Thermal power
100 W
Operator
Ipen, Cidade Universitaria
Status
Operating
First criticality
1988
Purpose
Teaching, training, materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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