Effects of the neutral point of dust charge in plasma sheath

I. Driouch; H. Chatei; M. El kaouini; M. El boujaddani; M. El hammouti

Effects of the neutral point of dust charge in plasma sheath

Plasma Physics 2015-03-17 v2

Authors: I. Driouch , H. Chatei , M. El kaouini , M. El boujaddani , M. El hammouti

Abstract

We numerically investigate the dust charging in the sheath, by using the usual fluid approximation, it is extended to include self consistently the dust charge variation. The grain charge becomes a new self consistent dynamic variable, it is found that dust grains are first charged negatively at the sheath edge and then begin to be charged positively in the sheath. The numerical results show that the initial velocity of dust charged grains, sized grains and the density ratio of ion to electron at the sheath edge have affected the neutral point of dust charge. Moreover, the neutral point of dust charge affects the spatial distribution of dust density.

Keywords

dust charging plasma sheath neutral point of dust charge fluid approximation self-consistent dust charge variation spatial distribution of dust density

Cite

@article{arxiv.1005.2905,
  title  = {Effects of the neutral point of dust charge in plasma sheath},
  author = {I. Driouch and H. Chatei and M. El kaouini and M. El boujaddani and M. El hammouti},
  journal= {arXiv preprint arXiv:1005.2905},
  year   = {2015}
}

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5 pages, 10 figures

Effects of the neutral point of dust charge in plasma sheath

Abstract

Keywords

Cite

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