Bohm Criterion in a Magnetized Plasma Sheath

JI Yankun; ZOU Xiu; LIU Huiping

Plasma Science and Technology > 2011 > 13(5): 519-522.

JI Yankun, ZOU Xiu, LIU Huiping. Bohm Criterion in a Magnetized Plasma Sheath[J]. Plasma Science and Technology, 2011, 13(5): 519-522.

Citation:

JI Yankun, ZOU Xiu, LIU Huiping. Bohm Criterion in a Magnetized Plasma Sheath[J]. Plasma Science and Technology, 2011, 13(5): 519-522.

Citation:

JI Yankun, ZOU Xiu, LIU Huiping. Bohm Criterion in a Magnetized Plasma Sheath[J]. Plasma Science and Technology, 2011, 13(5): 519-522.

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Bohm Criterion in a Magnetized Plasma Sheath

School of Science, Dalian Jiaotong University, Dalian 116028, China

Funds: Supported by National Natural Science Foundation of China (Nos. 11005015, 10605008)

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Received Date: October 26, 2010

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Abstract

Abstract

Bohm criterion in a magnetized plasma sheath is investigated with a fluid model. The upper and lower limits for the sheath criterion in different states of applied magnetic field are studied. The results from numerical simulation reveal that the magnetic field affects significantly the ion Mach number. The variation of the ion Mach number with the incident angle of the ions is also presented.
- Plasma sheath,
- Magnetic field

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