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Interaction of biased electrodes and plasmas: sheaths, double layers and fireballs
Plasma Sources Science and Technology ( IF 3.8 ) Pub Date : 2020-05-27 , DOI: 10.1088/1361-6595/ab8177 Scott D Baalrud 1 , Brett Scheiner 1 , Benjamin T Yee 2 , Matthew M Hopkins 2 , Edward Barnat 2
Plasma Sources Science and Technology ( IF 3.8 ) Pub Date : 2020-05-27 , DOI: 10.1088/1361-6595/ab8177 Scott D Baalrud 1 , Brett Scheiner 1 , Benjamin T Yee 2 , Matthew M Hopkins 2 , Edward Barnat 2
Affiliation
Biased electrodes are common components of plasma sources and diagnostics. The plasma-electrode interaction is mediated by an intervening sheath structure that influences properties of the electrons and ions contacting the electrode surface, as well as how the electrode influences properties of the bulk plasma. A rich variety of sheath structures have been observed, including ion sheaths, electron sheaths, double sheaths, double layers, anode glow, and fireballs. These represent complex self-organized responses of the plasma that depend not only on the local influence of the electrode, but also on the global properties of the plasma and the other boundaries that it is in contact with. This review summarizes recent advances in understanding the conditions under which each type of sheath forms, what the basic stability criteria and steady-state properties of each are, and the ways in which each can influence plasma-boundary interactions and bulk plasma properties. These results may be of interest to a number of application areas where biased electrodes are used, including diagnostics, plasma modification of materials, plasma sources, electric propulsion, and the interaction of plasmas with objects in space.
中文翻译:
偏置电极和等离子体的相互作用:护套、双层和火球
偏置电极是等离子体源和诊断的常见组件。等离子体-电极相互作用由介入鞘结构介导,该鞘结构影响接触电极表面的电子和离子的特性,以及电极如何影响体等离子体的特性。已观察到丰富多样的鞘结构,包括离子鞘、电子鞘、双鞘、双层、阳极辉光和火球。这些代表了等离子体复杂的自组织响应,不仅取决于电极的局部影响,还取决于等离子体的整体特性和它所接触的其他边界。这篇综述总结了在理解每种类型的鞘形成条件方面的最新进展,每个的基本稳定性标准和稳态特性是什么,以及每个可以影响等离子体边界相互作用和体等离子体特性的方式。这些结果可能对使用偏置电极的许多应用领域感兴趣,包括诊断、材料的等离子体改性、等离子体源、电力推进以及等离子体与空间物体的相互作用。
更新日期:2020-05-27
中文翻译:
偏置电极和等离子体的相互作用:护套、双层和火球
偏置电极是等离子体源和诊断的常见组件。等离子体-电极相互作用由介入鞘结构介导,该鞘结构影响接触电极表面的电子和离子的特性,以及电极如何影响体等离子体的特性。已观察到丰富多样的鞘结构,包括离子鞘、电子鞘、双鞘、双层、阳极辉光和火球。这些代表了等离子体复杂的自组织响应,不仅取决于电极的局部影响,还取决于等离子体的整体特性和它所接触的其他边界。这篇综述总结了在理解每种类型的鞘形成条件方面的最新进展,每个的基本稳定性标准和稳态特性是什么,以及每个可以影响等离子体边界相互作用和体等离子体特性的方式。这些结果可能对使用偏置电极的许多应用领域感兴趣,包括诊断、材料的等离子体改性、等离子体源、电力推进以及等离子体与空间物体的相互作用。