Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic field
In this study, the physics of sheath formation in a collisional two-electron temperature plasma in the presence of an oblique external magnetic field has been investigated. At first, a comparative study among the fluid electron model, Boltzmann electron model, and the non-extensive electron model ha...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2023-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0128420 |
| _version_ | 1811172610612920320 |
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| author | Gunjan Sharma Rupali Paul Kishor Deka Rakesh Moulick Sayan Adhikari S. S. Kausik B. K. Saikia |
| author_facet | Gunjan Sharma Rupali Paul Kishor Deka Rakesh Moulick Sayan Adhikari S. S. Kausik B. K. Saikia |
| author_sort | Gunjan Sharma |
| collection | DOAJ |
| description | In this study, the physics of sheath formation in a collisional two-electron temperature plasma in the presence of an oblique external magnetic field has been investigated. At first, a comparative study among the fluid electron model, Boltzmann electron model, and the non-extensive electron model has been carried out and a suitable range of non-extensive parameter q has been predicted. In the latter part, a collisional two-electron temperature plasma is considered. Both the hot and cold electron densities are described using the non-extensive distribution, whereas cold ions are described by the fluid equations. The properties of the sheath are investigated in different collisional regimes by varying the non-extensive parameter (q) and the hot to cold electron densities and temperatures. The magnetic field inclination angle is varied in the limit 1° ≤ α ≤ 5°. It is observed that electron distribution significantly deviates from Boltzmann distribution for nearly parallel magnetic field. Moreover, collision enhanced flux deposition for highly magnetized case is a significant finding of the study. The results obtained in this study can enhance the understanding of plasma–matter interaction processes where multiple electron groups with near parallel magnetic field are found. |
| first_indexed | 2024-04-10T17:33:06Z |
| format | Article |
| id | doaj.art-04d0013f0e1a4219af3e3ab6b5fc4bef |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-10T17:33:06Z |
| publishDate | 2023-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-04d0013f0e1a4219af3e3ab6b5fc4bef2023-02-03T16:42:06ZengAIP Publishing LLCAIP Advances2158-32262023-01-01131015011015011-910.1063/5.0128420Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic fieldGunjan Sharma0Rupali Paul1Kishor Deka2Rakesh Moulick3Sayan Adhikari4S. S. Kausik5B. K. Saikia6Centre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, 782402 Kamrup(M), Assam, IndiaCentre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, 782402 Kamrup(M), Assam, IndiaCentre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, 782402 Kamrup(M), Assam, IndiaCentre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, 782402 Kamrup(M), Assam, IndiaInstitute for Energy Technology, Instituttveien 8, 2007 Kjeller, NorwayCentre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, 782402 Kamrup(M), Assam, IndiaCentre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur, 782402 Kamrup(M), Assam, IndiaIn this study, the physics of sheath formation in a collisional two-electron temperature plasma in the presence of an oblique external magnetic field has been investigated. At first, a comparative study among the fluid electron model, Boltzmann electron model, and the non-extensive electron model has been carried out and a suitable range of non-extensive parameter q has been predicted. In the latter part, a collisional two-electron temperature plasma is considered. Both the hot and cold electron densities are described using the non-extensive distribution, whereas cold ions are described by the fluid equations. The properties of the sheath are investigated in different collisional regimes by varying the non-extensive parameter (q) and the hot to cold electron densities and temperatures. The magnetic field inclination angle is varied in the limit 1° ≤ α ≤ 5°. It is observed that electron distribution significantly deviates from Boltzmann distribution for nearly parallel magnetic field. Moreover, collision enhanced flux deposition for highly magnetized case is a significant finding of the study. The results obtained in this study can enhance the understanding of plasma–matter interaction processes where multiple electron groups with near parallel magnetic field are found.http://dx.doi.org/10.1063/5.0128420 |
| spellingShingle | Gunjan Sharma Rupali Paul Kishor Deka Rakesh Moulick Sayan Adhikari S. S. Kausik B. K. Saikia Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic field AIP Advances |
| title | Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic field |
| title_full | Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic field |
| title_fullStr | Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic field |
| title_full_unstemmed | Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic field |
| title_short | Study of two-electron temperature plasma sheath using non-extensive electron distribution in presence of an external magnetic field |
| title_sort | study of two electron temperature plasma sheath using non extensive electron distribution in presence of an external magnetic field |
| url | http://dx.doi.org/10.1063/5.0128420 |
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