Wilhelm Walcher

Wilhelm Walcher (7 July 1910 in Kaufbeuren – 9 November 2005 in Marburg) was a German experimental physicist. During World War II, he worked on the German nuclear energy project, also known as the Uranium Club; he worked on mass spectrometers for isotope separation. After the war, he was director of the Institute of Physics at the University of Marburg. He was a president of the German Physical Society and a vice president of the German Research Foundation. He helped found the Society for Heavy Ion Research and the German Electron Synchrotron DESY. He was also one of the 18 signatories of the Göttingen Manifest.

From 1929 to 1935, Walcher studied at the Technische Hochschule München (today, the Technische Universität München) and the Technische Hochschule Berlin (today, the Technische Universität Berlin. At Berlin, he was a teaching assistant to Gustav Hertz, Hans Kopfermann, Wilhelm Heinrich Westphal, and Hans Geiger. In 1933, on the advice of Hertz, he became a member of the Nationalsozialistischer Kraftfahrer Korps (NSKK, National Socialist Motorist Corps). He received his doctorate in 1937, at the Technische Hochschule Berlin, under Kopfermann.

In 1937, Walcher became a teaching assistant to Hans Kopfermann, who had taken an appointment at the Christian-Albrechts-Universität zu Kiel; Walcher was his teaching assistant there until 1942. At Kiel, Walcher developed a mass spectrograph for both isotope separation and determination of the degree of enrichment of uranium samples. From 1940, he worked on the German nuclear energy project, also known as the Uranverein (Uranium Club), under which he worked on two mass spectrometers to determine the composition of isotope mixtures and for neutron-spin analysis

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