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He studied Physics, Chemistry, and Philosophy at the University of Kiel (Germany). In 1925, he became the first graduate student of the new professor Hans Geiger, with whom he conducted research on ionization and its repercussions on gases and with whom, in 1928, he invented the Geiger-Müller tube, the basis of the counter. Geiger-Müller. A vitally important device, then and now, in radioactivity measurements.
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