Traveling-wave tube with periodic permanent-magnet focussing sys

Details Traveling-wave tube with periodic permanent-magnet focussing sys Traveling-wave tube with periodic permanent-magnet focussing sys

1983-04-28

1985-09-03

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

335210, 315 35, 315 36, H01J 2308

Patent

active

045395128

ABSTRACT:
A traveling-wave tube having a cylindrical vacuum envelope surrounded by a permanent-magnet system of ring-shaped pole washers and magnet rings respectively disposed therebetween and having opposite polarizations alternatingly in axial direction, which includes spacer rings formed of nonmetallic material surrounding the cylindrical vacuum envelope and spacing the magnet rings therefrom, corresponding magnet rings and spacer rings being soldered together into respective strong and stable units.

REFERENCES:
patent: 3398315 (1968-08-01), Washburn
patent: 3755706 (1973-08-01), Scott
patent: 3958147 (1976-05-01), Triplett
patent: 4041349 (1977-08-01), Davis
patent: 4137482 (1979-01-01), Caryotakis et al.
patent: 4404494 (1983-09-01), Heynisch

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