Studies of large amplitude Alfvén waves and wave-wave interactions in a laboratory plasma

Details Studies of large amplitude Alfvén waves and wave-wave interactions in a laboratory plasma Studies of large amplitude Alfvén waves and wave-wave interactions in a laboratory plasma

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..932...38c&link_type=abstract

TURBULENCE AND NONLINEAR PROCESSES IN ASTROPHYSICAL PLASMAS; 6th Annual International Astrophysics Conference. AIP Conference P

Astronomy and Astrophysics

Astrophysics

2

Wave/Wave, Wave/Particle Interactions, Experimental Techniques And Laboratory Studies

Scientific paper

A summary is given of experiments on large amplitude Alfvén waves in the Large Plasma Device at UCLA. The Alfvén waves are generated using either a resonant cavity (the Alfvén wave maser) or loop antenna and have magnetic field amplitude δB/B ~ 1%. These sources have been used to study a strong nonlinear interaction between Alfvén waves where two co-propagating waves beat together to drive an off-resonant Alfvén wave. In addition, with the launch of single large-amplitude Alfvén waves there is evidence for strong electron heating. The heating creates a highly-structured temperature profile which is unstable to drift-Alfvén waves.

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