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Analysis of Boltzmann Equation for SF6 and Some Gas-Mixture Discharges at Critical Field Condition

تحليل معادلة بولتزمان لسداسي فلوريد الكبريت وبعض تفريغات الخلائط الغازية تحت شرط المجال الحرج

Abdulrida S. Hasaani --- Mukhlis M. Ismail

Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية
ISSN: 18132065 23091673 Year: 2017 Volume: 13 Issue: 1 Pages: 31-34
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

Abstract

The energy electron distribution function at a particular reduced electric field E/p (where E is the electric field and p is the gas pressure) for SF6+He and SF6+Ar mixtures has been studied. The distribution function has been calculated as a function of percentage mixture ratio (k) ranging from zero (pure SF6) to 100% (for He or Ar) at (E/p)crt. On the other stage, these distribution functions are also studied as a function of (k) at a particular (E/p)crt. under which the breakdown occurs for the same gas mixtures. The (E/p)crt calculation is adopted to explain the discrepancy of the distribution function for gas mixtures. It is also found that the distribution function for gas mixtures at (E/p)crt. and for any value of (k) are identical.

Keywords

Gas discharge --- Boltzmann equation --- Effective ionization coefficient