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Correlation between fluctuating electron temperature and fluctuating space-potential challenges the probe determination of turbulent electric field spectrumYuan, Chengxun ...The measurement of plasma potential and electric field by the traditional Langmuir probe method can contain a significant qualitative error due to a spurious effect from temperature fluctuations that ... appear in the temperature-potential cross phase. This error is separate from any systematic error in the floating potential amplitude due to cross-correlated temperature and potential fluctuations not averaging out. Conditions under which electron temperature fluctuations significantly and insignificantly affect the measurement of electric field fluctuations in plasma are considered for both effects. Actual measurements illustrate the obtained conclusions are presented. Correct direct measurement of plasma’s space potential fluctuations requires that the amplitude of electron temperature fluctuations (in eV) be at least ten times smaller than the space potential fluctuation amplitude (in volts).Source: IEEE transactions on plasma science. - ISSN 0093-3813 (Vol. 52, no. 4, Apr. 2024, str. 1162-1167)Type of material - article, component part ; adult, seriousPublish date - 2024Language - englishCOBISS.SI-ID - 176472323
Author
Yuan, Chengxun |
Zhou, Chen |
Demidov, Mikhail V. |
Gyergyek, Tomaž |
Kovačič, Jernej, 1982- |
Koepke, Mark E. |
Kurlyandskaya, Iya P. |
Demidov, Vladimir I. |
Costea, Stefan |
Zhou, Zhongxiang
Topics
electric probe |
electron temperature oscillations |
emissive probes |
magnetized plasma |
plasma potential oscillations |
električne sonde |
oscilacije elektronske temperature |
emisijske sonde |
magnetizirana plazma |
oscilacije plazemskega potenciala
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Yuan, Chengxun | ![]() |
Zhou, Chen | ![]() |
Demidov, Mikhail V. | ![]() |
Gyergyek, Tomaž | 10401 |
Kovačič, Jernej, 1982- | 30680 |
Koepke, Mark E. | ![]() |
Kurlyandskaya, Iya P. | ![]() |
Demidov, Vladimir I. | ![]() |
Costea, Stefan | 53298 |
Zhou, Zhongxiang | ![]() |
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