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Plasma control by modification of helicon wave propagation in low magnetic fields

Lafleur, T.; Charles, C.; Boswell, R. W.


By making use of nonuniform magnetic fields, it is shown experimentally that control of helicon wave propagation can be achieved in a low pressure (0.08 Pa) expanding plasma. The m=1 helicon waves are formed during a direct capacitive to wave mode transition that occurs in a low diverging magnetic field(B₀<3 mT). In this initial configuration, waves are prevented from reaching the downstream region, but slight modifications to the magnetic field allows the axial distance over which waves can...[Show more]

CollectionsANU Research Publications
Date published: 2010-07-23
Type: Journal article
Source: Physics of Plasmas
DOI: 10.1063/1.3460351


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