Models of ion beam interactions for the stability analysis of migma

The stability of the central region of the triple delta distribution function for a migma is shown to be reducible to the analysis of fourth and sixth order ordinary differential equations for radial electrostatic modes, including axial oscillations and electron shielding effects. A normal mode stud...

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Detalles Bibliográficos
Autores principales: Gnavi, Graciela Delia, Gratton, Fausto Tulio Livio
Publicado: 1988
Materias:
Ion Beams
Magnetic Fields
Harris Instability
Migma
Plasmas
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01689002_v271_n1_p112_Gnavi
http://hdl.handle.net/20.500.12110/paper_01689002_v271_n1_p112_Gnavi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01689002_v271_n1_p112_Gnavi
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spelling paper:paper_01689002_v271_n1_p112_Gnavi2023-06-08T15:18:00Z Models of ion beam interactions for the stability analysis of migma Gnavi, Graciela Delia Gratton, Fausto Tulio Livio Ion Beams Magnetic Fields Harris Instability Migma Plasmas The stability of the central region of the triple delta distribution function for a migma is shown to be reducible to the analysis of fourth and sixth order ordinary differential equations for radial electrostatic modes, including axial oscillations and electron shielding effects. A normal mode study shows that a cylindrically counterstriming ion instability appears for ωpi > ωci. This effect should attenuated by the introduction of some spread in pθ. It is noted that a spherical system of counterstreaming beams is stable for radial modes. An instability of the Harristpe is discussed with a migma slab model, which includes finite axial extent and a bias electric field. It is suggested that a microinstability observed during the Migma IV experiment was stabilized by the combined influence of small axial wavelenghts and electron heating. © 1988. Fil:Gnavi, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gratton, F.T. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1988 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01689002_v271_n1_p112_Gnavi http://hdl.handle.net/20.500.12110/paper_01689002_v271_n1_p112_Gnavi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ion Beams
Magnetic Fields
Harris Instability
Migma
Plasmas
spellingShingle Ion Beams
Magnetic Fields
Harris Instability
Migma
Plasmas
Gnavi, Graciela Delia
Gratton, Fausto Tulio Livio
Models of ion beam interactions for the stability analysis of migma
topic_facet Ion Beams
Magnetic Fields
Harris Instability
Migma
Plasmas
description The stability of the central region of the triple delta distribution function for a migma is shown to be reducible to the analysis of fourth and sixth order ordinary differential equations for radial electrostatic modes, including axial oscillations and electron shielding effects. A normal mode study shows that a cylindrically counterstriming ion instability appears for ωpi > ωci. This effect should attenuated by the introduction of some spread in pθ. It is noted that a spherical system of counterstreaming beams is stable for radial modes. An instability of the Harristpe is discussed with a migma slab model, which includes finite axial extent and a bias electric field. It is suggested that a microinstability observed during the Migma IV experiment was stabilized by the combined influence of small axial wavelenghts and electron heating. © 1988.
author Gnavi, Graciela Delia
Gratton, Fausto Tulio Livio
author_facet Gnavi, Graciela Delia
Gratton, Fausto Tulio Livio
author_sort Gnavi, Graciela Delia
title Models of ion beam interactions for the stability analysis of migma
title_short Models of ion beam interactions for the stability analysis of migma
title_full Models of ion beam interactions for the stability analysis of migma
title_fullStr Models of ion beam interactions for the stability analysis of migma
title_full_unstemmed Models of ion beam interactions for the stability analysis of migma
title_sort models of ion beam interactions for the stability analysis of migma
publishDate 1988
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01689002_v271_n1_p112_Gnavi
http://hdl.handle.net/20.500.12110/paper_01689002_v271_n1_p112_Gnavi
work_keys_str_mv AT gnavigracieladelia modelsofionbeaminteractionsforthestabilityanalysisofmigma
AT grattonfaustotuliolivio modelsofionbeaminteractionsforthestabilityanalysisofmigma
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