Canada · Chalk River · 46.054, -77.365

NRU

NRU, a research reactor (heavy water) in Chalk River, Canada, with 135 MW of thermal power, operated by Chalk River Laboratories. Shut down, first critical in 1957.

It was one of the 18 research reactors Canada has had; 4 remain in operation today. It went critical 12 years after the first research reactor in Canada, ZEEP (1945). 10 heavy-water research reactors remain in operation today across 7 countries. Its declared uses include isotope production, neutron scattering, training and materials testing.

Country

Canada

City

Chalk River

Type

Heavy water

Thermal power

135 MW

Operator

Chalk River Laboratories

Status

Shut down

First criticality

1957

Purpose

Isotope production, neutron scattering, training, materials testing

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