Nonlinear ion heating in magnetized plasma by monochromatic low-frequency waves

Details Nonlinear ion heating in magnetized plasma by monochromatic low-frequency waves Nonlinear ion heating in magnetized plasma by monochromatic low-frequency waves

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986itps...14..910r&link_type=abstract

IEEE Transactions on Plasma Science (ISSN 0093-3813), vol. PS-14, Dec. 1986, p. 910-914. Research supported by the University of

Computer Science

7

Ion Cyclotron Radiation, Monochromatic Radiation, Plasma Heating, Space Plasmas, Auroras, Gyrofrequency, Particle Acceleration, Plasma Temperature, Trajectories

Scientific paper

Heating of ions by monochromatic low-frequency waves, propagating perpendicularly to a dipole magnetic field, is analyzed theoretically and verified by simulations. The nonlinear acceleration mechanism involves a distortion of the ion trajectory by the external wave. An ion feels along its distorted trajectory field components at twice the wave frequency. When the wave frequency equals half of the local gyrofrequency, the resulting wave field at the gyrofrequency accelerates the ion. The perpendicular acceleration and the parallel motion determine the interaction time and the final ion energy.

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