Published December 23, 1991
| Published
Journal Article
Open
Cyclotron resonance in a pure electron plasma column
- Creators
- Gould, Roy W.
- LaPointe, Michael A.
Chicago
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Abstract
We demonstrate experimentally the effects of plasma rotation and particle thermal velocities on cyclotron resonance in a long cylindrical pure electron plasma column of low density (ωₚ² ≪ ω꜀²). A single m=1 mode (e^(imθ - iωt)) is found whose frequency ω is down-shifted from ω꜀ = eB/mₑ by an amount equal to the low-frequency diocotron mode frequency (〈ωp²〉/2ω꜀). For m = 2,3,4,. . . sets of modes are found which are Doppler shifted upward from ωc. We explain these as radially trapped and azimuthally propagating Bernstein modes.
Additional Information
© 1991 The American Physical Society Received 16 September 1991 This work was supported by ONR Grant No. N00014-89-J-1264 and one of us (R.W.G.) gratefully acknowledges stimulating discussions with C. F. Driscoll, J. H. Malmberg, and T. M. O'Neil about non-neutral plasmas.Attached Files
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Additional details
- Eprint ID
- 1682
- Resolver ID
- CaltechAUTHORS:GOUprl91
- Office of Naval Research (ONR)
- N00014-89-J-1264
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