ES
United Kingdom United Kingdom · Dorchester · 50.682, -2.261

DIMPLE

DIMPLE, a research reactor (pool) in Dorchester, United Kingdom, with 100 W of thermal power, operated by AEE Winfrith. Decommissioned, first critical in 1962.

It was one of the 46 research reactors the United Kingdom has had; 1 remains in operation today. It went critical 15 years after the first research reactor in the United Kingdom, GLEEP (1947). 48 pool-type reactors remain in operation today across 28 countries.

Country
United Kingdom
City
Dorchester
Type
Pool
Thermal power
100 W
Operator
AEE Winfrith
Status
Decommissioned
First criticality
1962

Data: IAEA RRDB · updated on Sep 3, 2026

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