Numerical study on rectangular microhollow cathode discharge

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3555528· OSTI ID:21537262

Shoujie, He ^[1]; Jiting, Ouyang; Feng, He; Shang, Li ^[1]

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1. School of Science, Beijing Institute of Technology, Beijing 100081 (China)

Rectangular microhollow cathode discharge in argon is investigated by using two-dimensional time-dependent self-consistent fluid model. The electric potential, electric field, particle density, and mean electron energy are calculated. The results show that hollow cathode effect can be onset in the present configuration, with strong electric field and high mean electron energy in the cathode fall while high density and quasineutral plasma in the negative glow. The potential well and electric filed reversal are formed in the negative glow region. It is suggested that the presence of large electron diffusion flux necessitates the field reversal and potential well.

• OSTI ID: 21537262
• Journal Information: Physics of Plasmas, Vol. 18, Issue 3; Other Information: DOI: 10.1063/1.3555528; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ARGON
ELECTRIC FIELDS
ELECTRIC POTENTIAL
ELECTRONS
GLOW DISCHARGES
HOLLOW CATHODES
NUMERICAL ANALYSIS
TWO-DIMENSIONAL CALCULATIONS
CATHODES
ELECTRIC DISCHARGES
ELECTRODES
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
GASES
LEPTONS
MATHEMATICS
NONMETALS
RARE GASES