Walther Bothe (1891–1957)
Born 1891 CE, died 1957 CE.
Walther Wilhelm Georg Bothe (German: [ˈvaltɐ ˈboːtə] ; 8 January 1891 – 8 February 1957) was a German experimental physicist who shared the 1954 Nobel Prize in Physics with Max Born "for the coincidence method and his discoveries made therewith." Bothe served in the military during World War I from 1914, and he was a prisoner of war of the Russians, returning to Germany in 1920. Upon his return to the laboratory, he developed and applied coincidence circuits to the study of nuclear reactions, such as the Compton effect, cosmic rays, and the wave–particle duality of radiation. In 1930, Bothe became Full Professor and Director of the Physics Department at the University of Giessen. In 1932, he became Director of the Physical and Radiological Institute at Heidelberg University; he was driven out of this position by elements of the Deutsche Physik movement. To preclude his emigration from Germany, he was appointed Director of the Physics Institute of the Kaiser Wilhelm Institute for Medical Research at Heidelberg University. There, he built the first operational cyclotron in Germany.
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