1957: inauguration of the Calder Hall reactor
On 17 October 1956, the young Queen Elizabeth inaugurated the first of the four Calder Hall Magnox reactors at Windscale (Sellafield), which functioned until 2003. These Magnox reactors should not be confused with the Windscale atomic piles, whose purpose was to produce plutonium for military purposes. One of these atomic piles was in 1957 the place of one of the Windscale accident with limited consequences and whose analysis prevented further accidents of the same type..
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