Gridded electron gun

Details Gridded electron gun Gridded electron gun

1986-04-10

1988-04-12

Moore, David K.

Electric lamp and discharge devices

Electrode and shield structures

Foraminous electrodes or shields

313348, 313447, 313449, 315 35, 315 537, 315 14, H01J 2948, H01J 146, H01J 2946

Patent

active

047376805

ABSTRACT:
An improved grid arrangement is shown for a gridded electron gun wherein the control grid and/or shadow grid is provided with tapering grid vanes which reduce the amount of voltage required to cut off the electron beam. Alternately, a fewer number of grid vanes may be utilized to accomplish the same cutoff of the electron beam thus reducing the loading on the cathode and improving the transmission of the electron beam.

REFERENCES:
patent: 3962656 (1976-06-01), Peressini
patent: 4593230 (1986-06-01), True
A Theory for Coupling Gridded Gun Design with PPM Focussing, by Richard True, IEEE, vol. ED-31, No. 3, Mar. 1984.

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