DocumentCode
3555349
Title
Experimental evaluation of PPM focussed electron beams
Author
Döhler, G. ; Scafuri, F. ; Bowen, W. ; Groshart, G.
Author_Institution
Northrop Corp., Rolling Meadows, Illinois
Volume
26
fYear
1980
fDate
1980
Firstpage
814
Lastpage
817
Abstract
To determine allowable tolerances in TWT manufacturing, a beam tester capable of mapping the beam automatically in three dimensions within the PPM stack has been made operational. Beam position and beam ripple have been measured as a function of beam injection eccentricity, gun tilt, and anode-to-barrel spacing. The influence of cross fields in the PPM stack appears to be severe. Correlation between experimental results and the two-dimensional Hermannsfeldt computer code predictions have been made.
Keywords
Assembly; Cathodes; Costs; Electron beams; Manufacturing; Position measurement; Probes; Pulsed power supplies; Structural beams; System testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1980 International
Type
conf
DOI
10.1109/IEDM.1980.189963
Filename
1481406
Link To Document