The role of the ambipolar field in the formation of the EDF and the criteria of the local approximation

The role of the ambipolar field in the formation of the EDF and the criteria of the local approximation

It is shown that in the situation when the ambipolar field exceeds the heating field the local approximation (LA) for determining the EDF is not applicable even if the energy relaxation length of the electron is relatively small. Therefore, accurate results can be obtained only solving the kinetic e...

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Veröffentlicht in:Journal of physics. Conference series 2017-11, Vol.927 (1), p.12080
Hauptverfasser: Yuan, Chengxun, Rabadanov, K M, Bogdanov, E A, Kudryavtsev, A A, Zhou, Zhongxiang
Format: Artikel
Sprache:eng
Schlagworte:
Approximation
Kinetic equations
Mathematical analysis
Physics
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Zusammenfassung:It is shown that in the situation when the ambipolar field exceeds the heating field the local approximation (LA) for determining the EDF is not applicable even if the energy relaxation length of the electron is relatively small. Therefore, accurate results can be obtained only solving the kinetic equation in energy and spatial variables.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/927/1/012080