Observation of transverse and longitudinal modes in non-neutral electron clouds confined in a magnetic mirror
- 15 January 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 34 (2) , 131-133
- https://doi.org/10.1063/1.90723
Abstract
Electrostatic modes on non‐neutral electron clouds confined in a magnetic mirror field have been investigated. The cloud contains 2×1011 electrons at an average kinetic energy of 0.3 MeV for a magnetic field with a peak intensity of 9 kG at the midplane. It was found that the cloud is moving azimuthally as well as longitudinally. The azimuthal motion has an m=1 spatial nature. The longitudinal modes have a more complicated nature, but their frequency equals that of the azimuthal mode.Keywords
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