On the interaction of microparticles with ion flux in gas discharge plasma
On the interaction of microparticles with ion flux in gas discharge plasma
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DOI：
10.3103/s1068335613100035
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发表时间：
2013-10-01
影响因子：
0.4
通讯作者：
Klumov, B. A.
中科院分区：
文献类型：
--
作者：
Maiorov, S. A.;Klumov, B. A.
考虑了气体放电近电极区域内微粒的荷电和相互作用，其中外加电场和离子漂移的作用是显著的。结果表明，在尘埃等离子体实验的典型条件下(即10-100帕的气体放电)，离子聚焦被强烈地抑制，而离子聚焦是公认的垂直直线尘埃结构的形成。估算了被离子微粒捕获的离子对尘埃粒子电荷的贡献。结果表明，俘获离子可以显著降低微粒的电荷。
The charging and interaction of microparticles in the gas discharge near-electrode region, where the role of the external electric field and ion drift is significant, are considered. It is shown that the ion focusing, responsible for, as is generally accepted, the formation of vertical linear dust structures, is strongly suppressed under conditions typical of experiments with dusty plasma (i.e., the gas discharge at pressures of 10-100 Pa). The contribution of ions trapped by an ion microparticle to the dusty particle charge is estimated. It is shown that trapped ions can appreciably reduce the microparticle charge.