Now showing items 21-36 of 36

  • 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 ...
  • 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 ...
  • 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 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 ...
  • A model of coagulation in dust clouds during grain charging 

    Barge, Laura; Matthews, Lorin; Hyde, Truell (Advances in Space Research, 2004)
    Initially uncharged grains in space and laboratory plasma environments become charged due to currents driven by potential differences in the dusty plasma. Certain macroscopic effects such as coagulation of smaller grains ...
  • Modeling Agglomeration of Dust Particles in Plasma 

    Matthews, Lorin; Land, Victor; Ma, Qianyu; Perry, Jonathan; Hyde, Truell (AIP Conference Proceedings, 2011)
    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 distribution. The dipole-dipole (or higher order) ...
  • One-dimensional vertical dust strings in a glass box 

    Kong, Jie; Hyde, Truell; Matthews, Lorin; Qiao, Ke; Zhang, Zhuanhao (Physical Review E, 2011-07-28)
    The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a gaseous electronics conference (GEC) reference cell was studied. A mechanism for creating a ...
  • Phase Transitions in a Dusty Plasma with Two Distinct Particle Sizes 

    Smith, Bernard; Hyde, Truell; Matthews, Lorin; Reay, Jerry; Cook, Mike; Schmoke, Jimmy (Advances in Space Research, 2008)
    In semiconductor manufacturing, contamination due to particulates significantly decreases the yield and quality of device fabrication, therefore increasing the cost of production. Dust particle clouds can be found in almost ...
  • Photophoresis: Potential Sorting Mechanism in a Proto-planetary Disk 

    Smallwood, Jeremy
    The details of planet formation are still largely unknown, but it is understood that the initial stage of planet formation depends primary on the coagulation of micron-sized dust grains. One of the unexplained observations ...
  • Probing the sheath electric field using thermophoresis in dusty plasma 

    Land, Victor; Smith, Bernie; Matthews, Lorin; Hyde, Truell (IEEE Transactions on Plasma Science, 2010-04)
    A self-consistent dusty plasma fluid model has been extended to incorporate all the oble gases as the carrier gas. An analysis of void closure in complex plasma composed of these gases over a wide range of experimental ...
  • Simple method to measure the interaction potential of dielectric grains in a dusty plasma 

    Zhang, Zhuanhao; Qiao, Ke; Kong, Jie; Matthews, Lorin; Hyde, Truell (Physics Review E, 2010-09)
    A simple minimally perturbative method is introduced which provides the ability to experimentally measure both the radial confining potential and the interaction potential between two individual dust particles, levitated ...
  • Vertical Interaction Between Dust Particles Confined in a Glass Box in a Complex Plasma 

    Kong, Jie; Qiao, Ke; Carmona-Reyes, Jorge; Douglass, Angela; Zhang, Zhuanhao; Matthews, Lorin; Hyde, Truell (IEEE Transactions on Plasma Science, 2013-04)
    In this experiment, falling particle trajectories within and without a glass box placed on the lower electrode in a Gaseous Electronics Conference reference cell are recorded and analyzed, and the electrostatic forces ...
  • Vibrational Modes and Instabilities of a Dust Particle Pair in a Complex Plasma 

    Qiao, Ke; Matthews, Lorin; Hyde, Truell (IEEE Transactions on Plasma Science, 2010-04-10)
    Vibrational modes and instabilities of a dust-particle pair in a terrestrial aboratory complex plasma are investigated by employing an analytical method whereby the plasma wakefield induced by an external electric field ...