Basic factors for acquiring, correcting, and interpreting probe current-voltage characteristic in moderate-collisional plasma for determining electron energy distribution

被引:32
作者
Demidov, V. I. [1 ]
Koepke, M. E. [1 ]
Kurlyandskaya, I. P. [2 ]
Malkov, M. A. [2 ]
机构
[1] West Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA
[2] INTEPH Technol LLC, Fairborn, OH 45324 USA
关键词
POSITIVE-COLUMN; DISCHARGE; INTERMEDIATE; DENSITY; TEMPERATURE; PRESSURES; KINETICS; ARGON;
D O I
10.1063/1.5127749
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Methods for inferring the electron distribution function (EDF) from a probe current-voltage trace are reviewed for moderate-collisional plasma. The explicit accounting of particle collisions, modeling sheath depletion, and electron refilling processes are rarely performed when analyzing probe measurements, yet they are critical for regime validity, EDF-profile accuracy, and space potential quantification precision. The advantages, limitations, and utilization of large-area wall probes in moderate-collisional plasma, capable of highly resolved indications of energetic electrons in plasma, are outlined. Published under license by AIP Publishing.
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页数:20
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