Revealing an intermediate region between the collisional radiofrequency plasma bulk and its sheath

J. Beckers, D.J.M. Trienekens, G.M.W. Kroesen

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
128 Downloads (Pure)

Abstract

Experimental evidence of the existence of an intermediate region between a capacitively coupled plasma and the collisional space-charge region at its borders is presented. This proof is generated by monitoring—in an airplane carrying out parabolic flights—the trajectory of plasma-confined microparticles. Based on only primary data and without the need for a sophisticated model, our analysis concludes a sharply marked transition from the sheath region into another region with a significantly lower—yet nonzero—space-charge density, i.e., a region which is often called the presheath.
Original languageEnglish
Article number033109
Pages (from-to)1-5
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume91
Issue number3
DOIs
Publication statusPublished - 18 Mar 2015

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