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Ion Cyclotron Production by a Four-wave Interaction with a Helicon Pump

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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

URI

http://hdl.handle.net/1885/82267

Collections

ANU Research Publications

Source

Physical Review Letters

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1103/PhysRevLett.94.205002

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