When the plasma is unable to provide the positive anode sheath with ions (small anode, low anode plasma conductivity, ablating anode), the ions must be generated inside the sheath itself. The Poisson equation for the sheath with ion generation is solved. The ion flux from the sheath to the neutral plasma is obtained as a function of the anode voltage drop. It is shown that in the case of highly intensive ion generation, the mode with monotonous potential ceases to exist. It is hypothesized that a double layer is formed. It is suggested that the analysis could be applicable to the anode layer of a glow discharge.

中文翻译：

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在电弧放电中电离的正极护套

当等离子体无法为正阳极护套提供离子时（小阳极、低阳极等离子体电导率、烧蚀阳极），离子必须在护套内部产生。解决了离子生成鞘的泊松方程。从鞘层到中性等离子体的离子通量是作为阳极电压降的函数获得的。结果表明，在高强度离子产生的情况下，单调电位模式不复存在。假设形成了双层。建议该分析适用于辉光放电的阳极层。