By Topic

The Annular Geometry Electron Gun

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Schwartz, J.W. ; Kaiser Aircraft and Electronics, Div. of Kaiser Industries Corp., Oakland, Calif.; formerly with RCA Labs., Princeton, N.J.

The annular geometry gun represents a distinct departure in electron gun design and operation. The modulator section contains an annular cathode, annular control grids and accelerating grids, a beam bending probe and an electron object electrode. Very high modulation sensitivity, inverted modulation characteristics, internal electronic video signal amplification, and automatic "white noise" inversion are among the unique performance features of the annular geometry gun. Beam control is produced by a focus modulation process. The final spot is formed by imaging a geometrical aperture in the object plate. This results in very high resolution capabilities and an optimum focus condition and spot size which are practically independent of beam current.

Published in:

Proceedings of the IRE  (Volume:46 ,  Issue: 11 )