Document Type and Number:
Japanese Patent JPH0443371
Kind Code:
B2
Abstract:
An electron gun of the type comprising two electrodes facing each other and brought to different potentials so as to create therebetween a continuous electric field and a cathode positioned in the extension of the electrode at negative or zero potential and brought to the same potential as this latter, the assembly being subjected to a magnetic field perpendicular to the electric field. In the plane perpendicular to the magnetic field, at least one of said electrodes has a divergent profile so that the distance between electrodes increases from the cathode towards the outside of the gun.
Inventors:
JORUJU MURIE
Application Number:
JP6782784A
Publication Date:
July 16, 1992
Filing Date:
April 06, 1984
Export Citation:
Assignee:
THOMSON CSF
International Classes:
H01J23/06; H01J23/075; H01J25/00
Next Patent: JPH0443372