DocumentCode
945277
Title
Thermal Velocity Effects in Electron Guns
Author
Cutler, C.C. ; Hines, M.E.
Author_Institution
Bell Telephone Laboratories, Murray Hill, N.J.
Volume
43
Issue
3
fYear
1955
fDate
3/1/1955 12:00:00 AM
Firstpage
307
Lastpage
315
Abstract
A method is presented for determining the effect of the transverse velocities of electron emission on the flow in accelerated electron streams. Complete expressions are derived giving the degree and character of the beam spread in a Pierce-type electron gun resulting from the transverse velocity distribution, and an expression is derived for the image magnification in the pin-hole camera beam analyzer described in a companion paper. The theory clearly shows the increase in effective (transverse) beam temperature caused by beam convergence.
Keywords
Acceleration; Cameras; Cathodes; Convergence; Current density; Electron beams; Electron emission; Electron guns; Electron tubes; Focusing;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1955.278136
Filename
4055409
Link To Document