Dual mode gridded gun

Details Dual mode gridded gun Dual mode gridded gun

1976-01-19

1977-05-10

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

Foraminous electrodes or shields

313348, 315 35, 315 36, H01J 146, H01J 152, H01J 1704, H01J 1712

Patent

active

040230619

ABSTRACT:
Travelling wave tubes designed to operate interchangeably at low power cw and high pulsed power have grids to gate the pulses and to switch the peak beam current between two values. To preserve optimum beam-focus conditions, the beam diameter should be simultaneously switched. A grid covering the central region of a concave cathode draws the low-current, small beam for cw operation or the central part of a large pulsed beam. A second grid controls added pulsed emission from the surrounding annular region of te cathode. To provide the proper ratio of beam sizes and uniform cathode loading, the cathode has radially varying radius of curvature. A hyperboloid of revolution is a good shape.

REFERENCES:
patent: 2955227 (1960-10-01), Nergaard
patent: 3558967 (1971-01-01), Miriam
patent: 3818260 (1974-06-01), Elfe, Jr. et al.
patent: 3859552 (1975-01-01), Hechtel
patent: 3934168 (1976-01-01), Hardman et al.

Affiliated with

Also associated with

Rating

Dual mode gridded gun does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual mode gridded gun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual mode gridded gun will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1985448