DocumentCode
859781
Title
A 1-Megawatt CW RF Power Source for 80 MHz
Author
Fazio, Michael V. ; Hoffert, William J. ; Patton, Robert D. ; Sutherland, Robert
Author_Institution
Los Alamos National Laboratory, Los Alamos, NM 87545
Volume
28
Issue
3
fYear
1981
fDate
6/1/1981 12:00:00 AM
Firstpage
2904
Lastpage
2906
Abstract
The Fusion Materials Irradiation Test (FMIT) accelerator requires 13 RF amplifiers at 80 MHz, with a CW output of 600 kW each. The EIMAC 8973 (formerly the X-2170) was chosen as the amplifier tube for this application. Never before had the 8973 been operated at this power level and frequency; therefore a test program was initiated to determine its capabilities. The tube was operated Class B in the grounded-grid, grounded-screen configuration. Maximum CW output power was in excess of 1 MW, with a plate efficiency greater than 60% and a 14-dB gain. Details of the test setup and the results will be presented.
Keywords
Anodes; Capacitance; Circuit optimization; Laboratories; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Seals; Testing; Voltage;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1981.4331954
Filename
4331954
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