Laboratory Simulation of Ion Acceleration in the Presence of Lower Hybrid Waves

  1. Tom Chang,
  2. M. K. Hudson,
  3. J. R. Jasperse,
  4. R. G. Johnson,
  5. P. M. Kintner and
  6. M. Schulz
  1. R. McWilliams,
  2. R. Koslover,
  3. H. Boehmer and
  4. N. Rynn

Published Online: 21 MAR 2013

DOI: 10.1029/GM038p0245

Ion Acceleration in the Magnetosphere and Ionosphere

Ion Acceleration in the Magnetosphere and Ionosphere

How to Cite

McWilliams, R., Koslover, R., Boehmer, H. and Rynn, N. (1986) Laboratory Simulation of Ion Acceleration in the Presence of Lower Hybrid Waves, in Ion Acceleration in the Magnetosphere and Ionosphere (eds T. Chang, M. K. Hudson, J. R. Jasperse, R. G. Johnson, P. M. Kintner and M. Schulz), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM038p0245

Author Information

  1. Department of Physics, University of California, Irvine, Irvine, California 92717

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1986

ISBN Information

Print ISBN: 9780875900636

Online ISBN: 9781118664216

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Keywords:

  • Magnetosphere—Congresses;
  • Ionosphere—Congresses;
  • Ion flow dynamics—Congresses;
  • Space plasmas—Congresses

Summary

Ion acceleration perpendicular to the geomagnetic field has been observed by satellites and rockets in the suprauroral region. Also found are broadband lower-hybrid waves, and, at higher altitudes, conical upward-flowing ion distributions. The UCI Q-machine has been used to simulate the effect of lower hybrid waves on ion acceleration. Laser induced fluorescence was used for high resolution, non-perturbing measurements of the ion velocity distribution function. The plasma consisted of a 1 m long, 5 cm diameter barium plasma of densities on the order of 1010 per cm3 contained by a 3 kG magnetic field. Substantial changes in the perpendicular ion distribution were found. Main-body ion heating occurred along with non-maxwellian tail production. Over a 10 dB change in input wave power we observed up to a factor of 3 enhancement in main-body ion temperature.