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Electron swarm coefficients in SF6 and CF4 gas mixtures from Monte Carlo method

Published online by Cambridge University Press:  06 July 2006

B.-T. Wu ,
D.-M. Xiao  and
L.-C. Zhang
B.-T. Wu
Affiliation:
Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai, 200030, P.R. China
D.-M. Xiao*
Affiliation:
Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai, 200030, P.R. China
L.-C. Zhang
Affiliation:
Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai, 200030, P.R. China
*
[email protected]
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Abstract

In order to save the computing time of Monte Carlosimulation, traditional null collision method is improved in whichonly one cross section needs to be evaluated at each collisionspeed. By this method, the electron swarm parameters such aseffective ionization coefficient, $\bar{\alpha}$ , drift velocity and diffusioncoefficient of SF6 and CF4 gas mixtures are calculated overthe E/N range from 150 Td to 500 Td. A set of electron collisioncross-sections that gives transport parameters in agreement withmeasurements for the pure gases is used. The simulation results arethen compared with our experiment data, and show excellentagreements.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 35 , Issue 1 , July 2006 , pp. 57 - 60
Copyright
© EDP Sciences, 2006

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