Plasma ion dynamics and beam formation in electron cyclotron resonance ion sources

In electron cyclotron resonance ion sources it has been demonstrated that plasma heating may be improved by means of different microwave to plasma coupling mechanisms, including the "frequency tuning" and the "two frequency heating." These techniques affect evidently the electron...

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Bibliographic Details
Published in:Review of scientific instruments 2010-02, Vol.81 (2), p.02A334-02A334-4
Main Authors: Mascali, D., Neri, L., Gammino, S., Celona, L., Ciavola, G., Gambino, N., Miracoli, R., Chikin, S.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BRIGHTNESS
CONFINEMENT
ECR ION SOURCES
ELECTRONS
ION BEAMS
MICROWAVE RADIATION
PARTICLE ACCELERATORS
PLASMA
PLASMA HEATING
PLASMA SIMULATION
RF SYSTEMS
TUNING
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Summary:In electron cyclotron resonance ion sources it has been demonstrated that plasma heating may be improved by means of different microwave to plasma coupling mechanisms, including the "frequency tuning" and the "two frequency heating." These techniques affect evidently the electron dynamics, but the relationship with the ion dynamics has not been investigated in details up to now. Here we will try to outline these relations: through the study of ion dynamics we may try to understand how to optimize the electron cyclotron resonance ion sources brightness. A simple model of the ion confinement and beam formation will be presented, based on particle-in-cell and single particle simulations.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.3292932