Heinrich Greinacher, Date of Birth, Place of Birth, Date of Death
TweetHeinrich Greinacher
Swiss physicist (1880-1974)
Date of Birth: 31-May-1880
Place of Birth: St. Gallen, Canton of St. Gallen, Switzerland
Date of Death: 17-Apr-1974
Profession: physicist, university teacher
Nationality: Switzerland, Germany
Zodiac Sign: Gemini 
About Heinrich Greinacher
- Heinrich Greinacher (May 31, 1880 in St.
- Gallen – April 17, 1974 in Bern) was a Swiss physicist.
- He is regarded as an original experimenter and is the developer of the magnetron and the Greinacher multiplier.
- Greinacher was the only child of master shoemaker Heinrich Greinacher and his wife Pauline, born Münzenmayer.
- He went to school in St.
- Gallen and studied physics at both Zurich, Geneva and Berlin.
- He also trained as a pianist at the Geneva Conservatory of Music.
- Originally a German citizen, he was naturalized in 1894 as a Swiss citizen.
- In Berlin, Greinacher attended the lectures of Max Planck and received a doctorate in 1904 under Emil Warburg.
- He did his habilitation in 1907 at the University of Zurich, and in 1912, he moved to Zurich on a permanent basis.
- From 1924 to 1952, he was full professor of Experimental Physics at the University of Bern and the director of the Physical Institute (formerly Physics Cabinett).
- In 1912, Greinacher developed the magnetron and gave a fundamental mathematical description of this tube.
- In 1914, he invented the Greinacher multiplier (a rectifier circuit for voltage doubling).
- In 1920, he generalized this idea to a cascaded voltage multiplier, and developed detection methods for charged particles (proportional counter, spark counter).
- In the 1930s, using an independently invented Greinacher-style multiplier to research atomic nuclei, British researchers discovered artificial radioactivity.
- Greinacher was married twice: in 1910 to the German Marie Mahlmann, with whom he had two children, and then again in 1933 to Frieda Urben from Inkwil.
Read more at Wikipedia
See Also
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