Cockcroft, Sir John, 1897-1967

Cockcroft was a British nuclear physicist who played an important part in directing the use of radar against aerial attack. He had become famous in 1932 when he had collaborated with Ernest Walton to produce an atom-smasher. In 1939 he was appointed Assistant Director of Research, Ministry of Supply and from 1941-44 was Chief Superintendent of Air Defense Research and Development. In 1944 he was appointed Director of the Atomic Energy Division of the National Research Council of Canada.

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