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9 papers · 2 filters
Determination of the levitation limits of dust particles within the sheath in complex plasma experiments
Angela Douglass, Victor Land, Ke Qiao +2
Experiments are performed in which dust particles are levitated at varying heights above the powered electrode in a RF plasma discharge by changing the discharge power. The traject…
The effect of dust charge variation, due to ion flow and electron depletion, on dust levitation
Victor Land, Angela Douglass, Ke Qiao +2
Using a fluid model, the plasma densities, electron temperature and ion Mach number in front of a powered electrode in different plasma discharges is computed. The dust charge is c…
Agglomeration of Dust Particles in the Lab
Lorin S. Matthews, Jorge Carmona-Reyes, Victor Land +1
Dust aggregates are formed in a laboratory plasma as monodisperse spheres are accelerated in a self-excited dust density wave. The asymmetric charge on the aggregates causes them t…
Modeling Agglomeration of Dust Particles in Plasma
Lorin S. Matthews, Victor Land, Qianyu Ma +2
The charge on an aggregate immersed in a plasma environment distributes itself over the aggregate's surface; this can be approximated theoretically by assuming a multipole distribu…
One-dimensional vertical dust strings in a glass box
Jie Kong, Truell Hyde, Lorin Matthews +3
The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a GEC reference cell was studied. A mechanism for crea…
Dust particle charge in plasma with ion flow and electron depletion
Angela Douglass, Victor Land, Lorin Matthews +1
The charge of micrometer-sized dust particles suspended in plasma above the powered electrode of radio-frequency (RF) discharges is studied. Using a self-consistent fluid model, th…