Now showing items 22-41 of 63

    • Effect of Multi-Sized Dust Distribution on Local Plasma Sheath Potentials 

      Sun, Meihong; Matthews, Lorin; Hyde, Truell (Advances in Space Research, 2006)
      This work investigates the modification of a plasma sheath in a complex plasma due to the presence of dust particles with a specified size distribution. A self-consistent model for the plasma sheath is combined with a ...
    • Effect of the Charge-Dipole Interaction on the Coagulation of Fractal Aggregates 

      Matthews, Lorin; Hyde, Truell (IEEE Transactions on Plasma Science, 2004)
      A numerical model with broad applications to complex (dusty) plasmas is presented. The self-consistent N-body code allows simulation of the coagulation of fractal aggregates, including the charge-dipole interaction of the ...
    • Effects of monomer shape on the formation of aggregates from a power law monomer distribution 

      Perry, Jonathan; Kimery, Jesse; Matthews, Lorin; Hyde, Truell (New Journal of Physcis, 2013)
      The coagulation of dust aggregates is an important process in many physical systems such as the Earth’s upper atmosphere, comet tails and protoplanetary discs. Numerical models which study the aggregation in these systems ...
    • Electrical Conductivity of the Thermal Dusty Plasma under the Conditions of a Hybrid Plasma Environment Simulation Facility 

      Zhukhovitskii, D.; Petrov, O.; Hyde, T. W.; Herdrich, G.; Laufer, R.; Dropmann, M.; Matthews, L. S. (New Journal of Physcis, 2015-05-27)
      We discuss the inductively heated plasma generator (IPG) facility in application to the generation of the thermal dusty plasma formed by the positively charged dust particles and the electrons emitted by them. We develop ...
    • Experimental and computational characterization of a modified GEC cell for dusty plasma experiments 

      Land, Victor; Shen, Erica; Smith, Bernard; Matthews, Lorin; Hyde, Truell (New Journal of Physics, 2009-06-12)
      A self-consistent fluid model developed for simulations of microgravity dusty plasma experiments has for the first time been used to model asymmetric dusty plasma experiments in a modified Gaseous Electronics Conference ...
    • Finite coulomb crystal formation 

      Vasut, John; Hyde, Truell; Barge, Laura (Advances in Space Research, 2004)
      Dust particles immersed within a plasma environment, such as those found in planetary rings or comets, will acquire an electric charge. If the ratio of the inter-particle potential energy to average kinetic energy is large ...
    • Fluid modeling of void closure in microgravity noble gas complex plasmas 

      Land, Victor; Matthews, Lorin; Hyde, Truell; Bolser, Diana (Physics Review E, 2010-05-12)
      A self-consistent dusty plasma fluid model has been extended to incorporate all the noble gases as the carrier gas. An analysis of void closure in complex plasma composed of these gases over a wide range of experimental ...
    • Formation of Cosmic Dust Bunnies 

      Matthews, Lorin; Hayes, Ryan; Freed, Michael; Hyde, Truell (IEEE Transactions on Plasma Science, 2007)
      Planetary formation is an efficient process now thought to take place on a relatively short astronomical time scale. Recent observations have shown that the dust surrounding a protostar emits more efficiently at longer ...
    • Glow and Dust in Plasma Boundaries 

      Land, Victor; Douglass, Angela; Qiao, Ke; Zhang, Zhuanhao; Matthews, Lorin; Hyde, Truell W. (IEEE Transactions on Plasma Science, 2013-04)
      The sheath region is probed in different complex plasma experiments using dust particles in addition to the measurement of the optical emission originating from the plasma. The local maximum in the optical emission coincides ...
    • Gravitoelectrodynamics of Charged Grains in Saturn's F Ring: Encounters with Prometheus and Pandora 

      Matthews, Lorin; Hyde, Truell (Journal of Physics A, 2003-09-12)
      The dynamics of Saturn's F ring have been a matter of curiosity ever since Voyagers 1 and 2 sent back pictures of the ring's unusual features. Some of these images showed three distinct ringlets with the outer two displaying ...
    • Helical Structures in Vertically Aligned Dust Particle Chains in a Complex Plasma 

      Hyde, T. W.; Kong, J.; Matthews, L.S. (Physical Review E, 2013-05-16)
      Self-assembly of structures from vertically aligned, charged dust particle bundles within a glass box placed on the lower, powered electrode of a Gaseous Electronics Conference rf reference cell were produced and examined ...
    • How to make large, void-free dust clusters in dusty 

      Land, Victor; Goedheer, Willem Jan (IOP publishing, 2008-12-18)
      Collections of micrometer-sized solid particles immersed in plasma are used to mimic many systems from solid state and fluid physics, due to their strong electrostatic interaction, their large inertia, and the fact that ...
    • Hydrodynamic and kinetic modelling of complex radio-frequency plasmas 

      Goedheer, Willem Jan; Land, Victor; Venema, Jan (IOP publishing, 2009-09-18)
      In this paper hydrodynamic and kinetic approaches to model low-pressure capacitively coupled complex radio-frequency discharges are discussed and applied to discharges under micro-gravity. Complex plasmas contain dust ...
    • The influence of monomer shape on aggregate morphologies 

      Perry, Jonathan; Gostomski, Erwin; Matthews, Lorin; Hyde, Truell (Astronomy & Astrophysics, 2012-03)
      Context. The coagulation of dust particles is the initial step in planetary formation, with the precursors to planetesimals believed to form via the collisions of micron and submicron sized dust particles in the disk ...
    • Interaction force in a vertical dust chain inside a glass box 

      Kong, J.; Qiao, K.; Matthews, L.S.; Hyde, T.W. (Physical Review E, 2014-07-31)
      Small number dust particle clusters can be used as probes for plasma diagnostics. The number of dust particles as well as cluster size and shape can be easily controlled employing a glass box placed within a Gaseous ...
    • Ion-wake Field inside a Glass Box 

      Chen, Mudi; Dropmann, Michael; Matthews, Lorin; Hyde, Truell W. (Physical Review E, 2016-09)
      The confinement provided by a glass box is proving ideal for the formation of vertically aligned structures and a convenient method for controlling the number of dust particles comprising these dust structures as well as ...
    • Mapping of force field in a capacitively driven rf plasma discharge 

      Dropmann, Michael; Chen, Mudi; Sabo, Hannah; Laufer, Rene; Herdrich, Georg; Matthews, Lorin; Hyde, Truell W. (Journal of Plasma Physics, 2016-07)
      In this paper a method is described that allows mapping of the forces acting on dust particles in a GEC reference cell. Monodisperse particles are dropped into the plasma environment and their trajectories are tracked using ...
    • Measurement of net electric charge and dipole moment of dust aggregates in a complex plasma 

      Yousefi, Raziyeh; Davis, Allen; Carmona-Reyes, Jorge; Matthews, Lorin; Hyde, Truell (Physical Review E, 2014-09-02)
      Understanding the agglomeration of dust particles in complex plasmas requires knowledge of basic properties such as the net electrostatic charge and dipole moment of the dust. In this study, dust aggregates are formed from ...
    • Mode coupling and resonance instabilities in quasi-two-dimensional dust clusters in complex plasmas 

      Qiao, Ke; Kong, J.; Carmona, J.; Matthews, L. S.; Hyde, T. W. (American Physical Society, 2014-09-16)
      Small quasi-two-dimensional dust clusters consisting of three to eleven particles are formed in an argon plasma under varying rf power. Their normal modes are investigated through their mode spectra obtained from tracking ...
    • Mode Couplings and Conversions for Horizontal Dust Particle Pairs in Complex Plasmas 

      Qiao, Ke; Kong, Jie; Zhang, Zhuanhao; Matthews, Lorin; Hyde, Truell (IEEE Transactions on Plasma Science, 2013-04)
      The normal modes for horizontal dust particle pairs in a complex plasma are investigated using two methods, a numerical calculation and a molecular dynamics simulation. The ion wakefield downstream of each particle and the ...