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Article Dans Une Revue Applied Physics Letters Année : 2013

Langmuir probe analysis of highly electronegative plasmas

Résumé

A Langmuir probe analysis of highly electronegative plasmas is proposed. Analytical models are used to fit the IV-characteristics and their second derivatives above and below the plasma potential. Ion and electron densities are obtained for α (negative ion to electron density ratio) up to 3000, and the temperature of negative and positive ions is obtained for α ranging from 100 to 3000. The transport across a localized magnetic barrier is studied using this technique. It is shown that an ion-ion (electron free) plasma is formed downstream from the barrier at the highest magnetic field.
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Dates et versions

hal-01549411 , version 1 (28-06-2017)

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Jérôme Bredin, Pascal Chabert, Ane Aanesland. Langmuir probe analysis of highly electronegative plasmas. Applied Physics Letters, 2013, 102, pp.154107. ⟨10.1063/1.4802252⟩. ⟨hal-01549411⟩
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