DocumentCode
945305
Title
Magnetic Focusing of Electron Beams
Author
Mendel, J.T.
Author_Institution
Bell Telephone Labs, Inc., Murray Hill, N.J.
Volume
43
Issue
3
fYear
1955
fDate
3/1/1955 12:00:00 AM
Firstpage
327
Lastpage
331
Abstract
Electron trajectories for a pencil beam are studied for both uniform and periodic magnetic fields. General equations are given which apply to shielded and unshielded cathodes and all intermediate cases. The balance conditions which yield minimum ripple solutions are presented as a function of magnetic field. It is shown that these conditions require that considerable magnetic flux thread the cathode for magnetic fields in excess of the Brillouin value
Keywords
Cathodes; Electron beams; Equations; Magnetic confinement; Magnetic fields; Magnetic flux; Magnetic noise; Magnetic shielding; Permanent magnets; Yarn;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1955.278139
Filename
4055412
Link To Document