Basic factors for acquiring, correcting, and interpreting probe current-voltage characteristic in moderate-collisional plasma for determining electron energy distribution
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 measur...
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| Veröffentlicht in: | Physics of Plasmas 2020-02, Vol.27 (2) |
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| container_title | Physics of Plasmas |
| container_volume | 27 |
| creator | Demidov, V. I. Koepke, M. E. Kurlyandskaya, I. P. Malkov, M. A. |
| description | 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. |
| doi_str_mv | 10.1063/1.5127749 |
| format | Article |
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| ispartof | Physics of Plasmas, 2020-02, Vol.27 (2) |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY Collisional plasmas Collisional processes Computer simulation Current voltage characteristics Current-voltage characteristic Depletion Distribution functions Elastic collisions Electron distribution Electron energy distribution Electrostatics Particle collisions Penning ionization Plasma Plasma physics Plasma properties and parameters Plasma sheaths Ramsauer-Townsend effect Refilling Sheaths |
| title | Basic factors for acquiring, correcting, and interpreting probe current-voltage characteristic in moderate-collisional plasma for determining electron energy distribution |
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