Experimental verification of the inhomogeneous energy-density driven instability
- 23 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (21) , 3355-3358
- https://doi.org/10.1103/physrevlett.72.3355
Abstract
A category of oscillation identified with the inhomogeneous energy-density driven instability has been experimentally verified. This mode exploits the free energy available from shear in the E×B flow velocity. This shear is produced experimentally by applying different voltages to a segmented disk electrode located on axis at the end of a Q machine plasma column. As plasma conditions are varied between the two parameter regimes that, according to theory, correspond to the current-driven and shear-driven waves, the expected transition in mode characteristics is observed.Keywords
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