PARTICLE-IN-CELL (PIC) SIMULATIONS OF BEAM INSTABILITIES IN GYROTRONS

Authors
TRAN TM JOST G APPERT K ALBERTI S PEDROZZI M
Citation
Tm. Tran et al., PARTICLE-IN-CELL (PIC) SIMULATIONS OF BEAM INSTABILITIES IN GYROTRONS, Physics of plasmas, 4(8), 1997, pp. 3043-3048
Citations number
14
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
Physics of plasmas → ACNP
ISSN journal
1070664X
Volume
4
Issue
8
Year of publication
1997
Pages
3043 - 3048
Database
ISI
SICI code
1070-664X(1997)4:8<3043:P(SOBI>2.0.ZU;2-C
Abstract
Extensive simulations are performed to investigate effects of electron cyclotron instabilities on the gyrotron beam quality, using two-dimen sional axisymmetric particle-in-cell (PIG) codes. Both electrostatic a nd electromagnetic models, as well as realistic geometries of the gyro tron, are considered. It is found that a large beam density can lead t o an electrostatic-instability-induced energy spread which substantial ly degrades the gyrotron efficiency. (C) 1997 American institute of Ph ysics.