Paul, Wolfgang, 1913–93, German physicist, Ph.D. Technical Univ., Berlin, 1939. A professor at the Univ. of Bonn from 1952, Paul developed an ion-trap technique (known as the Paul trap), which made possible the detailed study of subatomic particles. Paul shared half the 1989 Nobel Prize in Physics with Hans Dehmelt, who had developed another method to trap ions; Norman F. Ramsey was the third awardee.
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