Ion Cyclotron Production by a Four-wave Interaction with a Helicon Pump
Date
2005
Authors
Sutherland, Orson
Giles, M
Boswell, Roderick
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
Ion cyclotron waves at approximately 0.7 the ion gyrofrequency have been observed experimentally in the large volume helicon reactor WOMBAT. These waves are highly localized along the axis of the device where a 8 cm diameter, 2 m long. Ar II plasma column is produced. Spectral measurements reveal a four-wave interaction where energy is down-converted to the ion cyclotron mode from the helicon pump. The experimental results are explained in terms of a filamentation type instability.
Description
Keywords
Keywords: Cyclotron waves; Four-wave interaction; Helicon reactor; Four wave mixing; Helicons; Plasmas; Stability; Cyclotron radiation
Citation
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Source
Physical Review Letters
Type
Journal article