25 July 1989 Ion-Acoustic Waves And Drift Waves In Negative Ion Sources
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Abstract
Attention is directed towards instabilities induced in Hydrogen plasmas due to the presence of the desired H- ions. Preliminary investigations indicate that the low density H- beam causes collective instabilities even at very low beam velocities compared to ion acoustic and ion thermal velocities, provided that the non-ideal properties of the background plasma are taken into consideration. The most dangerous instabilities involve oscillations transverse to the direction of beam extraction, and may thereby degrade the beam emittance.
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Richard A. Gerwin, "Ion-Acoustic Waves And Drift Waves In Negative Ion Sources", Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); doi: 10.1117/12.951854; https://doi.org/10.1117/12.951854
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