Electron gun for producing spiral electron beams and gyrotron de

Details Electron gun for producing spiral electron beams and gyrotron de Electron gun for producing spiral electron beams and gyrotron de

1981-11-12

1984-04-24

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

313430, 313455, 315 5, 315 535, H01J 2500

Patent

active

044450702

ABSTRACT:
An electron gun producing a spiral electron beam for gyrotron devices comprises means for producing an axial magnetic field propagating the beam axially beyond the anode of the electron gun, and separate electromagnets for producing a transverse "kicker" electromagnetic field beyond the anode and perpendicular to the magnetic propagation field such as to apply a transverse impulse of short duration, imparting a transverse motion, to the electrons to cause them to spiral as they are propagated axially beyond the anode.

REFERENCES:
patent: 3183399 (1965-05-01), Pantell
patent: 3450931 (1969-06-01), Feinstein et al.
patent: 3457450 (1969-07-01), Feinstein et al.
patent: 3463959 (1969-08-01), Jory et al.
patent: 3916239 (1975-10-01), Friedlander
patent: 4199709 (1980-04-01), Alirot et al.
patent: 4224576 (1980-09-01), Granatstein et al.
patent: 4253068 (1981-02-01), Barnett
patent: 4370621 (1983-01-01), Sprangle et al.

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