Device for guiding an electron beam

Details Device for guiding an electron beam Device for guiding an electron beam

1985-09-09

1987-11-10

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 3, 315 5, 333228, 372 19, H01J 2500

Patent

active

047059885

ABSTRACT:
A device for guiding an electron beam from an electron gun to a microwave resonator in a microwave source operating according to the gyrotron principle, including a beam duct for guiding the electron beam, wherein the beam duct encloses the electron beam and has an electrically highly conductive surface area. For damping unwanted wave modes inside the beam duct, a plurality of damping openings are provided in the surface area of the beam duct. The characteristic aperture size (a) of the damping openings is larger than the wavelength of the modes to be damped. A particularly simple implementation employs wire mesh with an appropriate mesh size used as the material for the surface area of the beam duct.

REFERENCES:
patent: 4387467 (1983-06-01), Kirby
patent: 4398121 (1983-08-01), Chodorow et al.
patent: 4494039 (1985-01-01), Kim
patent: 4516243 (1985-05-01), Utaka et al.
patent: 4531103 (1985-07-01), Evans et al.
patent: 4540960 (1985-09-01), Giordano
patent: 4561721 (1985-12-01), Keilmann et al.
patent: 4604551 (1986-08-01), Moeller

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