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Density dependence on negative corona onset voltage in helium

机译:密度依赖于氦气中负电晕发作电压

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This paper presents the results of experiments in gaseous helium, in point cathode-plane geometry, for a wide range of densities (3.l0{sup}(l9)-2.l0{sup}(2l) cm{sup}-3). A current instability occurs at a threshold voltage V{sub}s. ForV>V{sub}s, a space charge limited current is observed. The nature of charge carriers deduced from their mobility value and the variation of V{sub}s with density is discussed as a function of helium purity.
机译:本文介绍了气态氦的实验结果,在点阴极 - 平面几何形状中,用于广泛的密度(3.L0 {sup}(l9)-2.l0 {sup} cm {sup} -3 )。电流不稳定性发生在阈值电压V {SUB} S处。 FORV> V {SUB} S,观察到空间充电限制电流。从其迁移率值推导的电荷载体的性质和密度的V {亚} S的变化作为氦纯度的函数。

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