Heinrich Greinacher
Heinrich Greinacher | |
---|---|
Born | May 31, 1880 |
Died | April 17, 1974 | (aged 93)
Occupation | Physicist |
Children | 2 |
Heinrich Greinacher (May 31, 1880 in
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
In 1912, Greinacher developed the magnetron and gave a fundamental mathematical description of this tube.
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.
Foundation
A foundation was established in Bern in 1988 with the name of Heinrich-Greinacher-Stiftung from the estate of the couple Frieda and Heinrich Greinacher. Interest income of the Foundation's capital is used to fund the Heinrich Greinacher Prize and for the promotion of young researchers and scientists.
See also
- Ionometer
- Cockcroft-Walton_generator
References
- Heinz Balmer: Heinrich Greinacher zum Abschied. In: Physikalische Blätter. Bd. 30 (1974), Heft 10, S. 463–465
- ^ H. Greinacher (1912) "Über eine Anordnung zur Bestimmung von e/m" (On an apparatus for the determination of e/m), Verhandlungen der Deutschen Physikalischen Gesellschaft, 14 : 856–864.
- ^ "Invention of Magnetron"
- ^ Greinacher, H. (1914), "Das Ionometer und seine Verwendung zur Messung von Radium- und Röntgenstrahlen" [The ionometer and its application to the measurement of radium- and Röntgen rays], Physikalische Zeitschrift (in German), 15: 410–415. Greinacher's voltage doubler appears in Fig. 4 on p. 412. He used chemical (electrolytic) rectifiers, which are denoted "Z" (Zellen, cells).
- S2CID 119816536
Publications
- Negotiations of the Swiss Society of Natural Sciences. Issue 154 (1974), p. 239-251 (with a catalog)
- Hans Erich Hollmann:physics and technology of the ultra-waves. Volume 1 Production ultrakurzwelliger oscillations.
External links
- A video demonstration of a Greinacher tube Archived 2012-04-15 at the Wayback Machine