Angular dependence of the floating potential in a magnetized plasma

Koch, B.; Bohmeyer, W.; Fussmann, G.

doi:10.1016/S0022-3115(02)01547-7

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学術論文

Angular dependence of the floating potential in a magnetized plasma

MPS-Authors

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Koch, B.
Plasma Diagnostics Group (HUB), Max Planck Institute for Plasma Physics, Max Planck Society;

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Bohmeyer, W.
Plasma Diagnostics Group (HUB), Max Planck Institute for Plasma Physics, Max Planck Society;

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Fussmann, G.
Plasma Diagnostics Group (HUB), Max Planck Institute for Plasma Physics, Max Planck Society;

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https://doi.org/10.1016/S0022-3115(02)01547-7
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引用

Koch, B., Bohmeyer, W., & Fussmann, G. (2003). Angular dependence of the floating potential in a magnetized plasma. Journal of Nuclear Materials, 313-316, 1114-1118. doi:10.1016/S0022-3115(02)01547-7.

引用: https://hdl.handle.net/11858/00-001M-0000-0027-232D-8

要旨

The experiments presented in this work are part of an extended investigation aiming to understand the angular dependence of energy and particle fluxes in magnetized plasmas. Here we concentrate on measurements of the floating potential U_f as a function of angle under various conditions (n_pl, T_e, B) and for a number of ion species (H, D, He and Ar). A pronounced reduction of U_f is experimentally observed at oblique incidence. It is found that the magnitude of this reduction correlates with the Debye length while the normalized angular dependence remains similar under all conditions investigated.