| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Sheath Criterion for a Collisional Electronegative Plasma Sheath in an Applied Magnetic Field |
| ZOU Xiu1**, LIU Hui-Ping1, QIU Ming-Hui1, SUN Xiao-Hang2
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1School of Science, Dalian Jiaotong University, Dalian 116028
2Department of Physics Mathematics and Physics Science Class, Tsinghua University, Beijing 100084
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| Cite this article: |
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ZOU Xiu, LIU Hui-Ping, QIU Ming-Hui et al 2011 Chin. Phys. Lett. 28 125201 |
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Abstract The sheath criterion for a collisional electronegative plasma sheath in an applied magnetic field is investigated. It is assumed that the system consists of hot electrons, hot negative ions and cold positive ions. The effect of an applied magnetic field on the sheath criterion is discussed. The results reveal that the magnetic field has effects on both the upper and lower limits, which cause the range of the ion Mach number to increase. In addition, the numerical calculations of the electronegative plasma sheath are carried out to demonstrate the effects of sheath criterion on the characteristics of the sheath.
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| Keywords:
52.25.Xz
52.27.Cm
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Received: 06 April 2011
Published: 29 November 2011
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| PACS: |
52.25.Xz
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(Magnetized plasmas)
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52.27.Cm
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(Multicomponent and negative-ion plasmas)
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