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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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 |
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en_ZA |
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Electromagnetic waves. Plasma (Ionized gases) Theses--Physics. |
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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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1716637045956280320 |