United Kingdom · Dorchester · 50.682, -2.261

ZENITH I

ZENITH I, a research reactor (graphite) in Dorchester, United Kingdom, with 500 W of thermal power, operated by AEE Winfirth. Decommissioned, first critical in 1959.

It was one of the 46 research reactors the United Kingdom has had; 1 remains in operation today. It went critical 12 years after the first research reactor in the United Kingdom, GLEEP (1947). 4 graphite-moderated research reactors remain in operation today across 3 countries.

Country

United Kingdom

City

Dorchester

Type

Graphite

Thermal power

500 W

Operator

AEE Winfirth

Status

Decommissioned

First criticality

1959

See also: every research reactor in United Kingdom · How research reactors work