DocumentCode
799281
Title
Mode Damping in NAL Main Ring Accelerating Cavities
Author
Dehn, R.A. ; Kerns, Q.A. ; Griffin, J.E.
Author_Institution
General Electric Microwave Tube Operation, Schenectady, N. Y.
Volume
18
Issue
3
fYear
1971
fDate
6/1/1971 12:00:00 AM
Firstpage
260
Lastpage
261
Abstract
The application of a ferrite with strong dispersion of magnetic loss tangent to control the impedance of undesired modes in the main ring cavities of the National Accelerator Laboratory synchrotron is described. The impedances of 17 of 21 modes in the frequency range of interest have been damped to less than 0.5 percent of the main mode impedance. On the basis of low level measurements, the dissipation added due to mode damping is 2 kW for operation at a 200 kV gap voltage.
Keywords
Acceleration; Accelerator magnets; Damping; Ferrites; Frequency; Impedance; Laboratories; Level measurement; Magnetic losses; Synchrotrons;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1971.4326026
Filename
4326026
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