Traveling wave tube devices

Details Traveling wave tube devices Traveling wave tube devices

1979-11-21

1981-08-11

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 36, 315 393, H01J 2534

Patent

active

042836565

ABSTRACT:
In a traveling wave tube device of the type comprising a helix which causes a microwave power to interact with an electron beam and a periodic permanent magnet assembly for focusing the electron beam, there are provided a plurality of annular permanent magnets and a plurality of pole pieces which are alternately disposed between input and output member of the microwave. The permanent magnets and pole pieces define annular recesses and a plurality of troidal metal spring rings are disposed in each recess in thermal contact with the permanent magnets and a carbonaceous coating coated on a pumped enclosure containing the helix.

REFERENCES:
patent: 2847608 (1958-08-01), Thornburg
patent: 2857547 (1958-10-01), Klein et al.
patent: 2911599 (1959-11-01), Klein et al.
patent: 2964670 (1960-12-01), Bliss
patent: 3227913 (1966-01-01), Disman et al.
patent: 3398315 (1968-08-01), Washburn
patent: 3617802 (1971-11-01), Manoly

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