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The cavity magnetron is a high-power vacuum tube used in early radar systems and subsequently in microwave ovens and in linear particle accelerators. A cavity magnetron generates microwaves using the interaction of a stream of electrons with a magnetic field , while moving past a series of cavity resonators , which are small, open cavities in a ...
The cavity magnetron was a crucial component in the development of short wavelength radar during World War II. [8] In 1937–1940, a multi-cavity magnetron was built by British physicist Sir John Turton Randall, FRSE and coworkers, for the British and American military radar installations in World War II. [ 9 ]
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The cavity magnetron is a vacuum tube with a filament in the center of an evacuated, lobed, circular cavity resonator. A perpendicular magnetic field is imposed by a ...
[17] [38] In December 2002, he loosely described a prototype which he alleged had produced a thrust of 0.02 newtons (0.072 ozf) powered by an 850 W cavity magnetron. The device could operate for only a few dozen seconds before the magnetron failed from overheating. [ 39 ]
Original cavity magnetron, 1940. This was developed by John Randall (1905-1984) and Harry Boot (1917-1983) at Birmingham University. Radars that could produce clear images of distant objects played a decisive role in World War II, by bouncing powerful, ultra-short radio waves off their targets.
1939–1949 – Development of the Cavity Magnetron; 1940–1950. 1940 – FM Police Radio Communication; 1940–1945 – MIT Radiation Laboratory;
As the "cavity magnetron" is what is most commonly thought of when "magentron" is mentioned, I think that it stands best as it is. Leonard G. 02:47, 10 Mar 2005 (UTC) Mention could be made of the Japanese invention of the cavity magnetron see "The main reason the Japanese effort remained unknown was because it lagged so far behind Allied and ...