Mexico · Zacatecas · 23.300, -102.700 (approximate location)

Chicago Modelo 9000

Chicago Modelo 9000, a research reactor (subcritical assembly) in Zacatecas, Mexico, operated by Unidad Academia de Estudios Nucleares. Temporary shutdown, first critical in 1969.

It is one of the 2 research reactors operating in Mexico, all of them zero-power assemblies. It was among the first research reactors in Mexico, going critical in 1969 alongside one other, and is still operating 57 years later. It is one of 20 subcritical assemblies operating worldwide, spread across 13 countries.

Country

Mexico

City

Zacatecas

Type

Subcritical assembly

Thermal power

critical

Operator

Unidad Academia de Estudios Nucleares

Status

Temporary shutdown

First criticality

1969

See also: every research reactor in Mexico · How research reactors work