Absolute measurement of the total ion-drag force on a single plasma-confined microparticle at the void edge under microgravity conditions

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

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Abstract

We present an absolute measurement of the total ion-drag force on one single microparticle at the edge of the dust free region in low pressure complex plasmas: the void. In order to do so, the particle confinement position was monitored as a function of the gas pressure for two particle sizes under normal gravity conditions and under microgravity conditions during parabolic flights. At the border of the void, the ion-drag force on a particle with a radius of 4.90 µm appeared to be (3.6±0.3)×10 -12 N.
Original languageEnglish
Pages (from-to)055101-1/4
Number of pages3
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume88
Issue number5
DOIs
Publication statusPublished - 2013

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