Determination of the electron collision cross section set for the C₂F₆ molecule

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• 作者：Pham Xuan Hien ; Do Anh Tuan ; Byung-Hoon Jeon
• 关键词：Electron ; collision cross section ; Perfluoroethane (C2F6) molecule ; Electron swarm study ; Electron ; transport coefficient ; Boltzmann equation analysis
• 刊名：Journal of the Korean Physical Society
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：69
• 期：12
• 页码：1755-1761
• 全文大小：
• 刊物主题：Physics, general; Theoretical, Mathematical and Computational Physics; Particle and Nuclear Physics;
• 出版者：The Korean Physical Society
• ISSN：1976-8524
• 卷排序：69

文摘

The electron drift velocity and the density-normalized longitudinal diffusion coefficient in the pure C₂F₆ molecule over the E/N range of 0.1-100 Td have been measured using a double shutter drift tube, where E is the electric field and N is the neutral number density. Our electron drift velocity values are in good agreement with those reported in a previous work on the C₂F₆ molecule. The negative differential conductivity phenomenon was found in the electron drift velocity. The results of our new measurements on the pure C₂F₆ molecule, along with the available electron transport coefficients, in 0.524 and 5.47 % C₂F₆ - Ar mixtures were used to successfully obtain the most reliable set of electron-collision cross sections for the C₂F₆ molecule by using a multi-term Boltzmann analysis.