THEORY OF OSCILLATIONS AND CONDUCTIVITY FOR HALL THRUSTER
THEORY OF OSCILLATIONS AND CONDUCTIVITY FOR HALL THRUSTER
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霍尔推进器的振动和传导性理论
DOI：
10.2514/6.1996-3192
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发表时间：
1996
期刊：
影响因子：
2.5
通讯作者：
Yu. M. Yashnov
中科院分区：
文献类型：
--
作者：
V. Baranov;Yury Nazarenko;V. Petrosov;A. Vasin;Yu. M. Yashnov
等离子体振荡在具有闭合电子漂移（ACD）的加速器中是至关重要的，因为它们决定了穿过磁场的电导率和扩散，并且因此决定了ACD操作的效率。因此，如果不清楚和全面地了解ACD中的振荡，就不可能清楚地理解ACD的操作。ACD中的等离子体振荡通常分为电离（10 exp 4至10 exp 5）Hz）、渡越（10 exp 5至10 exp 6 Hz）、电子漂移（10 exp 7 Hz）、电子回旋（10 exp 9 Hz）和朗缪尔（10 exp 8至10 exp 10 Hz）振荡。前三种类型是ACD等离子体的整体性质。这些振荡的机制是在20世纪70年代发展出最初的ACD之后提出的，其中包含了许多错误的假设和物理模型中的基本错误，因此它们与实验数据严重矛盾。这项工作的目的是阐述一个全面的普遍机制的ACD振荡，将占不仅是已知类型的振荡，但也伴随着他们的现象，如电子导电性，异常侵蚀，等离子体射流结构。（AIAA）
Plasma oscillations are of primary importance in accelerators with closed electron drift (ACDs) since they determine the conductivity and diffusion across the magnetic field and, therefore, the efficiency of ACD operation. Thus, it is impossible to clearly understand ACD operation without having a clear and comprehensive picture of the oscillations in them. Plasma oscillations in ACDs usually fall into ionization (10 exp 4 to 10 exp 5) Hz), transit (10 exp 5 to 10 exp 6 Hz), electron-drift (10 exp 7 Hz), electron cyclotronic (10 exp 9 Hz), and Langmuir (10 exp 8 to 10 exp 10 Hz) oscillations. The three former types are integral properties of the ACD plasma. The mechanisms of those oscillations, proposed just after the development of initial ACDs in the 1970s, contain a number of wrong assumptions and essential mistakes in the physical models, so they seriously contradict experimental data. This work aims to elaborate on a comprehensive universal mechanism of ACD oscillations that would account for not only the known types of oscillations, but also the phenomena accompanying them, such as electron conductivity, abnormal erosion, and plasma jet structure. (AIAA)