Properties of electron swarms in CF3I

被引：15
|
作者：
Hasegawa, H. [2 ]
Date, H. [1 ]
Shimozuma, M. [3 ]
Itoh, H. [4 ]
机构：
[1] Hokkaido Univ, Fac Hlth Sci, Sapporo, Hokkaido 0600812, Japan
[2] Tomakomai Natl Coll Technol, Tomakomai 0591275, Japan
[3] Hokkaido Inst Technol, Sapporo, Hokkaido 0068585, Japan
[4] Muroran Inst Technol, Muroran, Hokkaido 0508585, Japan
来源：
APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 10期
关键词：
electric fields; electron attachment; ionisation; organic compounds; Townsend discharge; ATTACHMENT COEFFICIENTS; IONIZATION; CF4; DIFFUSION; MIXTURES; NITROGEN; GASES; C2F6; C3F8;
D O I：
10.1063/1.3224197
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the electron swarm parameters, the drift velocity, and the ionization coefficients in CF3I gas for relatively wide ranges of reduced electric fields (E/N). The drift velocity is measured based on the arrival-time spectra of electrons for E/N=200-3000 Td, and the first and second ionization coefficients are determined by the steady-state Townsend method for E/N=400-5000 Td. The results are compared with those of CF4 to show that CF3I has a high reactivity for electron attachment in a low E/N region resulting in a much higher limiting E/N value (440 Td) than that of CF4.
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页数：3
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