Excitation of shear Alfvén waves by a spiraling ion beam in a large magnetoplasma | Zendy

S. K. P. Tripathi | Zendy; B. Van Compernolle | Zendy; Walter Gekelman | Zendy; Patrick Pribyl | Zendy; W. W. Heidbrink | Zendy

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Excitation of shear Alfvén waves by a spiraling ion beam in a large magnetoplasma

Author(s) -

S. K. P. Tripathi,

B. Van Compernolle,

Walter Gekelman,

Patrick Pribyl,

W. W. Heidbrink

Publication year - 2015

Publication title -

physical review e

Language(s) - English

Resource type - Journals

eISSN - 1550-2376

pISSN - 1539-3755

DOI - 10.1103/physreve.91.013109

Subject(s) - excitation , shear (geology) , ion , physics , atomic physics , beam (structure) , ion beam , mechanics , computational physics , materials science , optics , quantum mechanics , composite material

Generation of shear Alfvén waves by the Doppler-shifted ion-cyclotron-resonance (DICR) of a spiraling H(+) ion beam with magnetic fluctuations in a dual-species magnetized plasma with He(+) and H(+) ions has been investigated on the Large Plasma Device. The ambient plasma density and electron temperature were significantly enhanced by the beam. The Alfvén waves were left-handed polarized and traveled in the direction opposite to the ion beam. This is the first experimental demonstration of the DICR excitation of traveling shear Alfvén waves in a laboratory magnetoplasma.

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