Varian, Russell H.; and Varian, Sigurd F.

Varian, Russell H.; and Varian, Sigurd F.

▪ American inventors
in full   Russell Harrison Varian  and  Sigurd Fergus Varian 
Respectively,
 
born April 24, 1898, Washington, D.C., U.S.
died July 28, 1959, Juneau, Alaska
born May 4, 1901, Syracuse, N.Y., U.S.
died Oct. 18, 1961, Puerto Vallarta, Mex.

      brothers who, with William W. Hansen, invented the klystron radio tube, a powerful microwave generator.

      Russell Varian received his M.A. in 1927 from Stanford University, Stanford, Calif., and worked in a technical capacity with several organizations, including Humble Oil and Refining Company, Farnsworth Television Company, and Varian Associates.

      During the period 1935–39, Russell and his brother, Sigurd, a largely self-taught engineer and pilot, worked with William W. Hansen of Stanford to develop the klystron. Russell Varian and Hansen developed the theoretical basis of the klystron, a novel application of the principle of amplitude modulation to a beam of electrons. Sigurd Varian built the mechanism. The klystron tube was first used in radar detection and guidance systems and was later applied to electron accelerator technology. Russell Varian also invented a magnetometer that was used for the measurement of the Earth's magnetic field by the Vanguard satellite. In 1948 the brothers formed Varian Associates, a firm that produced microwave devices useful in the linear electron accelerator and in detectors of nuclear magnetic resonance.

* * *


Universalium. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Varian Associates — was a company founded in 1948 by Russell H. and Sigurd F. Varian, William Webster Hansen, and Edward Ginzton to sell the klystron, the first tube which could generate electromagnetic waves at microwave frequencies, and other electromagnetic… …   Wikipedia

  • Varian Medical Systems — Infobox Company company name = Varian Medical Systems Inc. company company type = Public (NYSE: [http://www.nyse.com/about/listed/lcddata.html?ticker=VAR VAR] ) foundation = 1948 location = Palo Alto, California key people = Timothy E. Guertin,… …   Wikipedia

  • Russell Harrison Varian — (* 24. April 1898 in Washington D. C.; † 28. Juli 1959 in Juneau, Alaska) war Wissenschaftler und Erfinder eines Mikrowellengenerators und Magnetometers.[1] Inhaltsverzeichnis 1 Leben 2 Literatur …   Deutsch Wikipedia

  • Silicon Valley — the area in northern California, southwest of San Francisco in the Santa Clara valley region, where many of the high technology design and manufacturing companies in the semiconductor industry are concentrated. [so called from the silicon wafers… …   Universalium

  • Klystron — A klystron is a specialized linear beam vacuum tube (evacuated electron tube). Klystrons are used as amplifiers at microwave and radio frequencies to produce both low power reference signals for superheterodyne radar receivers and to produce high …   Wikipedia

  • Halcyon, California — is an unincorporated community of approximately 125 acres (0.5 km²) in San Luis Obispo County, California, located just beyond the southern border of the city of Arroyo Grande, at coor dms|35|06|12|N|120|35|41|W|. It was founded in 1903 as a… …   Wikipedia

  • Klystron — Le klystron est un tube à vide qui permet de réaliser des amplificateurs de moyenne et forte puissance à bande étroite en hyperfréquences. Sommaire 1 Histoire …   Wikipédia en Français

  • David Packard Medal of Achievement — Contents 1 Current Recipient 2 Past Recipients 3 References David Packard Medal of Achievement, formerly …   Wikipedia

  • List of Stanford University people — This is a list of encyclopedic persons (students, alumni, faculty or academic affiliates) associated with Stanford University in the United States. University presidents #David Starr Jordan (1891 – 1913) #John Casper Branner (1913 – 1915) #Ray… …   Wikipedia

  • Charles Litton, Sr. — Charles Vincent Litton, Sr (1904–1972) was an engineer and inventor from the area now known as Silicon Valley.[1] Biography Charles Vincent Litton was born, March 13, 1904, in San Francisco. His mother was Alice J. Vincent and father was Charles… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”