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dc.contributor.authorHollerbach, Uwe
dc.date.accessioned2017-04-04T22:13:03Z
dc.date.available2017-04-04T22:13:03Z
dc.date.issued1987-09
dc.identifier.urihttp://hdl.handle.net/11122/7365
dc.descriptionThesis (M.S.) University of Alaska Fairbanks, 1987en_US
dc.description.abstractThis study investigated the suprathermal electron tails produced in a beam-plasma instability, and their scaling with beam and background densities. A periodic one-dimensional electrostatic simulation was used to study the suprathermal tails. Electrons were treated as particles, and ions were treated as a fluid. The simulation showed that ion dynamics are required for the formation of the suprathermal tails, as expected from the theory of the oscillating two-stream instability. The energy of the suprathermal tails is directly proportional to the beam density, and does not depend strongly on the background density. There is a slight decrease in the energy of the suprathermal tails as the background density increases. A novel numerical effect was also found: a three-plasmon interaction caused by the modification of the Langmuir wave dispersion relation when high-order splines are used as particle shape factors.en_US
dc.language.isoen_USen_US
dc.titleSuprathermal electron tails in a beam-plasma instabilityen_US
dc.typeThesisen_US
dc.type.degreemsen_US
dc.identifier.departmentPhysicsen_US
dc.contributor.chairSwift, W.
dc.contributor.committeeStenbaek-Nielsen, H. C.
dc.contributor.committeeRees, M. H.
dc.contributor.committeeKan, J. R.
refterms.dateFOA2020-01-25T02:09:14Z


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