Particle-in-cell (PIC) simulations of beam instabilities in gyrotron beam tunnels
- CRPP, Suisse (Switzerland)
- CRAY, Lausanne (Switzerland)
Experimental observations seem to indicate that the beam velocity and energy spreads are larger than those calculated from the electron trajectory codes which do not take into account the effects of beam instabilities. On the other hand, parasitic oscillations of the beam with frequencies close to the electron cyclotron frequency {omega}{sub ce} have been observed experimentally, suggesting the possibility that instabilities can be excited in the beam tunnels and are responsible for the beam degradation. 2D electrostatic and electromagnetic time-dependent PIC codes have been developed to simulate the beam transport in the beam tunnel. The results of extensive parametric runs, using these codes (which were ported on the Cray T3D massively parallel computer), together with the role of the beam instabilities around {omega}{sub ce} on the beam degradation will be reported.
- OSTI ID:
- 391184
- Report Number(s):
- CONF-951240-; TRN: 96:005002-0014
- Resource Relation:
- Conference: 20. annual international conference on infrared and millimeter waves, Lake Buena Vista, FL (United States), 11-15 Dec 1995; Other Information: PBD: 1995; Related Information: Is Part Of Twentieth international conference on infrared and millimeter waves; Temkin, R.J. [ed.]; PB: 604 p.
- Country of Publication:
- United States
- Language:
- English
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