Sheath properties in active magnetized multi-component plasmas

Multi-component active plasmas are modeled in the presence of a constant oblique magnetic field by using the hydrodynamics equations. Assuming the electrons and negative ions have Boltzmann distribution and the positive ions have finite temperature, the sheath formation criterion is derived by analy...

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Bibliographic Details
Published inScientific reports Vol. 11; no. 1; p. 9531
Main Author Hatami, M. M.
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 05.05.2021
Nature Publishing Group
Nature Portfolio
Subjects
639/766/1960
639/766/1960/1136
Charged particles
Humanities and Social Sciences
Hydrodynamics
Ionization
Ions
Magnetic fields
multidisciplinary
Science
Science (multidisciplinary)
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Summary:Multi-component active plasmas are modeled in the presence of a constant oblique magnetic field by using the hydrodynamics equations. Assuming the electrons and negative ions have Boltzmann distribution and the positive ions have finite temperature, the sheath formation criterion is derived by analyzing the Sagdeev potential. It is found that the Bohm velocity of positive ions depends sensitively on the plasma parameters such as ion-neutral collision frequency, electron impact ionization frequency, positive and negative ion temperatures, initial densities of the charged particles and direction of the applied magnetic field. Also, using our obtained Bohm criterion, the sheath properties of an active magnetized plasma consisting of electrons and positive and negative ion species are investigated numerically and the results are compared with the results of a similar quiescent plasma.
Bibliography:ObjectType-Article-1
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-88894-1