On anode spots, double layers and plasma contactors
On anode spots, double layers and plasma contactors
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在阳极点、双层和等离子接触器上
DOI：
10.1088/0022-3727/24/10/012
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
R. Merlino
中科院分区：
文献类型：
--
作者：
B. Song;N. Dangelo;R. Merlino
在Ar、Kr和Ar等离子体中观察到了明亮的、轮廓清晰的、近似球形的物体（“火球”），通常直径为几厘米。“火球”被固定在一个偏置在地电位以上40-50 V的圆盘阳极上。他们已经分析了一个球形的双层模型，其中电离的气体原子的电子激励在双层起着至关重要的作用。的相关性进行了讨论的结果，所谓的“等离子体接触器”将用于空间，特别是在电动系绳的应用程序。
Luminous, sharply defined and nearly spherical objects ('fireballs'), typically several centimetres in diameter, have been observed in Ar, Kr and Xe plasmas. The 'fireballs' are anchored on a disk anode biased at 40-50 V above ground potential. They have been analysed in terms of a spherical double-layer model, in which ionization of the gas atoms by electrons energized at the double layer plays an essential role. The relevance is discussed of the results to the so-called 'plasma contactors' to be used in space, especially in view of applications to electrodynamic tethers.