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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