Hans Geiger

Hans Geiger
Hans Geiger
	Hans Wilhelm Geiger (1928)
Born	30 September 1882; Neustadt an der Haardt, Palatinate, German Empire
Died	24 September 1945 (aged 62); Potsdam, Germany
Nationality	German
Known for	Geiger counter; Geiger–Marsden experiment; Geiger–Müller tube; Geiger–Nuttall law; Bothe–Geiger coincidence experiment; Coincidence method;
Awards	Hughes Medal (1929); Duddell Medal and Prize (1937);
	Scientific career
Fields	Physics and sciences
Institutions	University of Erlangen; University of Manchester;

Johannes Wilhelm "Hans" Geiger (/ˈɡaɪɡər/; German: [ˈɡaɪɡɐ]; 30 September 1882 – 24 September 1945) was a German physicist. He is best known as the co-inventor of the detector component of the Geiger counter and for the Geiger–Marsden experiment which discovered the atomic nucleus. He also carried the Bothe–Geiger coincidence experiment that confirmed the conservation of energy in light-particle interactions.

He was the brother of meteorologist and climatologist Rudolf Geiger.

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