Plasma electron collection through biased slits in a dielectric
Plasma electron collection through biased slits in a dielectric
复制标题
通过电介质中的偏置狭缝收集等离子体电子
DOI：
10.2514/3.25876
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发表时间：
1987
影响因子：
1.6
通讯作者：
M. Carruth
中科院分区：
文献类型：
--
作者：
M. Carruth
大量的实验和分析工作都是为了理解导致高压太阳能阵列/空间等离子体相互作用的等离子体鞘层生长和放电现象。一个尚未解决的重要问题是，这种阵列表面附近等离子体鞘层中的电压梯度如何影响这些相互作用。本文所描述的实验研究的目的是检查介电介质中偏压狭缝周围的护套合并以及这如何影响通过这些狭缝的电子收集。通过发射探针和直接测量通过狭缝收集的电流得到的数据表明，当鞘层合并时，狭缝收集的电流发生了显著变化，最正极的狭缝收集的电子比其他狭缝收集的电子多。因此，在评估太阳能电池阵列的性能时，应考虑太阳能电池阵列周围护套电压梯度的影响。
A large number of experimental and analytical efforts have been directed toward understanding the plasma sheath growth and discharge phenomena which lead to high-voltage solar array/space plasma interactions. An important question which has not been addressed is how the voltage gradient in the plasma sheath near the surface of such an array may affect these interactions. The purpose of the experimental study described in this paper is to examine the merging of the sheaths around biased slits in a dielectric and how this affects the collection of electrons through these slits. The data, which are obtained by emissive probes and direct measurement of the current collected through the slits, indicate that when the sheaths merge the current collection by the slits is significantly altered with the most positive slit collecting more electrons than it otherwise would. Therefore, the effect of a voltage gradient in the sheath around a solar array should be considered when evaluating solar array performance.