A study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.

The interaction of an anisotropic (in velocity space) ion beam with an isotropic background hydrogen plasma is theoretically investigated. The length and time scales are such that both the ions and electrons are magnetized. Using linear theory, the electrostatic dispersion relation is derived, and s...

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Main Author: Singh, Pravin.
Other Authors: Bharuthram, Ramesh.
Language:en_ZA
Published: 2013
Subjects:
Online Access:http://hdl.handle.net/10413/9962
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spelling ndltd-netd.ac.za-oai-union.ndltd.org-ukzn-oai-http---researchspace.ukzn.ac.za-10413-99622014-02-08T03:49:20ZA study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.Singh, Pravin.Electromagnetic waves.Plasma (Ionized gases)Theses--Physics.The interaction of an anisotropic (in velocity space) ion beam with an isotropic background hydrogen plasma is theoretically investigated. The length and time scales are such that both the ions and electrons are magnetized. Using linear theory, the electrostatic dispersion relation is derived, and solved fully, using no approximations. It is shown that the anisotropy can significantly enhance the instability growth rates as compared to the isotropic case. The importance of ion magnetization is illustrated. Comparisons are made with unmagnetized plasma results. The modulational instability of an arbitrarily-large-amplitude electron cyclotron wave along the external magnetic field is investigated, taking into account the relativistic electron quiver velocity and the relativistic ponderomotive force. Three types of plasma slow responses, the forced-Raman, quasistatic and forced-quasistatic, are considered and a parameter study of the instability growth rates is carried out.Thesis (M.Sc.)-University of Durban-Westville, 1989.Bharuthram, Ramesh.2013-11-11T10:12:05Z2013-11-11T10:12:05Z19892013-11-11Thesishttp://hdl.handle.net/10413/9962en_ZA
collection NDLTD
language en_ZA
sources NDLTD
topic Electromagnetic waves.
Plasma (Ionized gases)
Theses--Physics.
spellingShingle Electromagnetic waves.
Plasma (Ionized gases)
Theses--Physics.
Singh, Pravin.
A study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.
description The interaction of an anisotropic (in velocity space) ion beam with an isotropic background hydrogen plasma is theoretically investigated. The length and time scales are such that both the ions and electrons are magnetized. Using linear theory, the electrostatic dispersion relation is derived, and solved fully, using no approximations. It is shown that the anisotropy can significantly enhance the instability growth rates as compared to the isotropic case. The importance of ion magnetization is illustrated. Comparisons are made with unmagnetized plasma results. The modulational instability of an arbitrarily-large-amplitude electron cyclotron wave along the external magnetic field is investigated, taking into account the relativistic electron quiver velocity and the relativistic ponderomotive force. Three types of plasma slow responses, the forced-Raman, quasistatic and forced-quasistatic, are considered and a parameter study of the instability growth rates is carried out. === Thesis (M.Sc.)-University of Durban-Westville, 1989.
author2 Bharuthram, Ramesh.
author_facet Bharuthram, Ramesh.
Singh, Pravin.
author Singh, Pravin.
author_sort Singh, Pravin.
title A study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.
title_short A study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.
title_full A study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.
title_fullStr A study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.
title_full_unstemmed A study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.
title_sort study of the interaction of strong electromagnetic waves and anisotropic ion beams with a background plasma.
publishDate 2013
url http://hdl.handle.net/10413/9962
work_keys_str_mv AT singhpravin astudyoftheinteractionofstrongelectromagneticwavesandanisotropicionbeamswithabackgroundplasma
AT singhpravin studyoftheinteractionofstrongelectromagneticwavesandanisotropicionbeamswithabackgroundplasma
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