Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1983-08-29
1985-11-19
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 5, 315 539, 315 543, 372 2, H01J 2500
Patent
active
045544840
ABSTRACT:
A complex cavity gyrotron designed for stable operation at high order modes. The device comprises circuitry for generating an annular electron beam, a coupled cavity disposed coaxially with the electron beam and having a first and second adjacent coaxial sections with the dimensions of these coaxial sections adjusted so that different modes with the same azimuthal eigen number but different radial eigen numbers are simultaneously resonant at approximately the same frequency in the two sections, and circuitry for generating an axial magnetic field within the cavity. Few, if any, combinations of modes other than the combination chosen will simultaneously resonate in the cavity thereby effecting higher order mode suppression. The present design has a low susceptibility to beam velocity spread and is effective for any combination of modes with identical azimuthal eigen numbers.
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B. Arfin et al., "A High Power Gyrotron Operating in the TE.sub.041 Mode", NRL report.
Kwo Ray Chu et al., "Methods of Efficiency Enhancement and Scaling for the Gyrotron Oscillator", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-28, No. 4, Apr. 1980.
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Carmel Yuval
Chu Kwo R.
Ganguly Achintya K.
Read Michael E.
Beers Robert F.
Chatmon Saxfield
Ellis William T.
The United States of America as represented by the Secretary of
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