Title :
Space charge effects as a source of electron energy spread and efficiency degradation in gyrotrons
Author :
Bratman, Vladimir L. ; Dumbrajs, Olgierd ; Nikkola, Petri ; Savilov, Andrey V.
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia
fDate :
6/1/2000 12:00:00 AM
Abstract :
Space charge effects (so-called negative-mass instability) as the reason for electron energy spread developing in the region of the electron drift between the cathode and the cavity of a gyrotron are discussed. The quasioptical gyrotron working at third harmonic that is developed at Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne, is used to demonstrate the expected efficiency degradation
Keywords :
electron mobility; gyrotrons; space charge; cathode; cavity; efficiency degradation; electron drift; electron energy spread; gyrotrons; negative-mass instability; quasioptical gyrotron; space charge effects; third harmonic; Cathodes; Cyclotrons; Degradation; Electron beams; Gyrotrons; Masers; Physics; Plasmas; Radio frequency; Space charge;
Journal_Title :
Plasma Science, IEEE Transactions on
