Space charge effects as a source of electron energy spread and efficiency degradation in gyrotrons

Authors
Bratman, VL Dumbrajs, O Nikkola, P Savilov, AV
Citation
Vl. Bratman et al., Space charge effects as a source of electron energy spread and efficiency degradation in gyrotrons, IEEE PLAS S, 28(3), 2000, pp. 633-637
Citations number
19
Categorie Soggetti
Physics
Journal title
IEEE TRANSACTIONS ON PLASMA SCIENCE
ISSN journal
00933813 → ACNP
Volume
28
Issue
3
Year of publication
2000
Pages
633 - 637
Database
ISI
SICI code
0093-3813(200006)28:3<633:SCEAAS>2.0.ZU;2-Q
Abstract
Space charge effects (so-called negative-mass instability) as the reason fo r electron energy spread developing in the region of the electron drift bet ween the cathode and the cavity of a gyrotron are discussed. The quasioptic al gyrotron working at third harmonic that is developed at Centre de Recher ches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne, is used to demonstrate the expected efficiency degradation.