DocumentCode
2744946
Title
On the negative-mass instability in gyrotrons
Author
Dumbrajs, I. ; Nikkola, P. ; Piosczyk, B.
Author_Institution
Dept. of Eng. Phys. & Math., Helsinki Univ. of Technol., Espoo, Finland
fYear
2000
fDate
12-15 Sept. 2000
Firstpage
385
Lastpage
386
Abstract
Space-charge effects, the so-called negative-mass instability (NMI), as the reason for electron energy spread arising in the region of the electron drift between the cathode and the cavity of a gyrotron are discussed. Theoretical calculations are compared with the results of the experiments performed at Forschungszentrum Karlsruhe.
Keywords
cathodes; cavity resonators; gyrotrons; millimetre wave generation; millimetre wave tubes; space charge; stability; 140 GHz; 165 GHz; Forschungszentrum Karlsruhe; cathode; cavity; electron drift; electron energy spread; gyrotrons; negative-mass instability; space-charge effects; Cyclotrons; Electron beams; Energy measurement; Fluctuations; Frequency; Gyrotrons; Magnetic field measurement; Masers; Performance evaluation; Resonance;
fLanguage
English
Publisher
ieee
Conference_Titel
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location
Beijing, China
Print_ISBN
0-7803-6513-5
Type
conf
DOI
10.1109/ICIMW.2000.893072
Filename
893072
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