Sweep Langmuir Probe and Triple Probe Diagnostics for Transient Plasma Produced by Hypervelocity Impact
作者： Enling Tang , Shenghai Xiang , Minghai Yang , Lexin Li
DOI: 10.1088/1009-0630/14/8/12
关键词: Langmuir probe 、 Electron density 、 Electron temperature 、 Computational physics 、 Atomic physics 、 Hypervelocity 、 Plasma 、 Temporal resolution 、 Plasma diagnostics 、 Chemistry 、 Sweep frequency response analysis
摘要: Two techniques are applied to diagnose characteristic parameters of plasma created by hypervelocity impact, such as electron temperature and density. The first technique is a sweep Langmuir probe (SLP), which new apparatus based on dual channel circuit that can compensate for stray capacitance obtain good synchronicity, so electrostatic turbulence with temporal resolution be acquired. second triple (TLP), an diagnostic system, in no voltage frequency required. This allows measure temperature, density function time. Moreover, the system direct display semidirect appropriate permits us eliminate almost all data processing procedures. SLP TLP were fluctuations generated impact. As example their application time-dependent measurement, plasmas acquired impact experiments. Characteristic compared two kinds mentioned above.
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