628 resources related to Dusty Plasmas
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The Pulsed Power Conference is held on a biannual basis and serves as the principal forum forthe exchange of information on pulsed power technology and engineering.
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science
IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.
Scope of the conference is to provide medium to discuss advances and applications offusion methodologies. Conference will include contributions in the areas of fusionmethodologies, theory and representation, algorithms and modelling and simulation.
ICMMT2018 is intended to provide a broad international forum and nice opportunity for the scientists and engineers to present their new ideas and exchange information on research.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
The development and application of electric systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; the creation of voluntary engineering standards and recommended practices.
Science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage. The Transactions publishes scholarly articles of archival value as well as tutorial expositions and critical reviews of classical subjects and topics of current interest.
Plasma science and engineering, including: magnetofluid dynamics and thermionics; plasma dynamics; gaseous electronics and arc technology; controlled thermonuclear fusion; electron, ion, and plasma sources; space plasmas; high-current relativistic electron beams; laser-plasma interactions; diagnostics; plasma chemistry and colloidal and solid-state plasmas.
IEEE Spectrum Magazine, the flagship publication of the IEEE, explores the development, applications and implications of new technologies. It anticipates trends in engineering, science, and technology, and provides a forum for understanding, discussion and leadership in these areas. IEEE Spectrum is the world's leading engineering and scientific magazine. Read by over 300,000 engineers worldwide, Spectrum provides international coverage of all ...
IEEE Transactions on Plasma Science, 2014
The structure and dynamics of dust particles in a 3-D dusty plasma is characterized using a Langevin molecular dynamics simulation with a Yukawa potential. Conditions are set appropriate for a liquid-like strongly coupled plasma. The positions of dust particles are shown in an image. The thermal motion of particles is decomposed into the longitudinal wave spectrum, showing a distinctive dispersion ...
IEE Half-day Colloquium on Dusty Plasmas (Ref. No. 1998/267), 1998
IEEE Transactions on Plasma Science, 2014
Large dust clouds in dusty plasmas exhibiting self-excited dust density waves (DDWs) have been investigated in a microgravity environment. With the help of the tracer particle technique , 3-D trajectories of single dust particles within the dust cloud have been measured using a stereoscopic camera setup. With the availability of the full phase-space information, 3-D wave properties can be accessed. ...
2016 IEEE International Conference on Plasma Science (ICOPS), 2016
Summary form only given. Using the “rotodust” experimental setup  at the Hypervelocity Impacts and Dusty Plasmas Lab (HIDPL) of the Center for Astrophysics, Space Physics, and Engineering Research (CASPER) at Baylor University we have realized effective magnetization of single layer dusty plasma systems in the strongly coupled state up to thousands of Teslas of magnetic induction. The self-diffusion in ...
2014 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM), 2014
The field of dusty plasmas has become a vigorous and established area of research for a number of decades now. In this work, two computational models are mainly developed to study possible plasma turbulence during the charged aerosol release experiments in space plasmas. Meanwhile, its applications for magnetized dusty plasmas for complex plasma research with upcoming experiment facilities at Auburn ...
The structure and dynamics of dust particles in a 3-D dusty plasma is characterized using a Langevin molecular dynamics simulation with a Yukawa potential. Conditions are set appropriate for a liquid-like strongly coupled plasma. The positions of dust particles are shown in an image. The thermal motion of particles is decomposed into the longitudinal wave spectrum, showing a distinctive dispersion relation.
Large dust clouds in dusty plasmas exhibiting self-excited dust density waves (DDWs) have been investigated in a microgravity environment. With the help of the tracer particle technique , 3-D trajectories of single dust particles within the dust cloud have been measured using a stereoscopic camera setup. With the availability of the full phase-space information, 3-D wave properties can be accessed. In this paper, the spatial variation of the oscillation amplitude of single particles participating in a DDW is presented. We find that the amplitude increases in the direction of wave propagation and is nearly homogenous in the plane perpendicular to that direction.
Summary form only given. Using the “rotodust” experimental setup  at the Hypervelocity Impacts and Dusty Plasmas Lab (HIDPL) of the Center for Astrophysics, Space Physics, and Engineering Research (CASPER) at Baylor University we have realized effective magnetization of single layer dusty plasma systems in the strongly coupled state up to thousands of Teslas of magnetic induction. The self-diffusion in these ensembles of 300 to 400 particles was derived by measuring the cage correlation function  in the central region and utilizing the recently found connection between the variation of particle environments (cages) and the diffusion coefficient . Systems parameters (Γ coupling and κ screening in the Yukawa OCP model) were determined using the pair distribution and the velocity autocorrelation functions . The experimental values show good agreement with molecular dynamics simulations.
The field of dusty plasmas has become a vigorous and established area of research for a number of decades now. In this work, two computational models are mainly developed to study possible plasma turbulence during the charged aerosol release experiments in space plasmas. Meanwhile, its applications for magnetized dusty plasmas for complex plasma research with upcoming experiment facilities at Auburn University is considered. Two new hybrid and full fluid two-dimensional computational models have been developed to investigate instabilities in nonuniform magnetized dusty plasmas. The magnetic fields have been applied to study the effect on plasma wave excitation.
Summary form only given. Complex/dusty plasmas consist of microparticles of a well-defined size that are embedded in a low temperature plasma. These particles charge up negatively and strongly interact with each other. They display a wealth of collective effects that can be studied on the level of individual particles. Here, we present a simulation that is able to reproduce many of the dynamical effects observed in experiments. It consists of a coupled fluid simulation of the plasma and a molecular dynamics (MD) simulation of the microparticle dynamics. The fluid simulation is based on a hybrid code  developed for the finite elements simulation tool COMSOL. The plasma bulk is simulated as fluid, and the sheaths are solved analytically. The MD code uses the open source tool LAMMPS  and extends it to take into account the forces from the plasma. This way, we reproduce experimental findings such as void formation, separation by particle size, formation of Mach cones by a probe particle, and lane formation.
A laser heating method for 2-D dusty plasmas is improved so that particle motion better resembles thermal motion in a liquid. Laser beams are rastered in a pattern of arcs with three randomly varying parameters: curvature, initial angle, and the speed of the laser footprint as it follows an arc. An experimental test is performed using particle tracking to generate power spectra of velocities. Peaks in these spectra indicate coherence in the particle motion, which is a discrepancy when compared with the stochastic nature of molecular motion in a liquid. We find that spectral peaks are diminished tenfold by rastering with random arcs as compared with a previously used pattern in which beams moved in straight lines at constant speeds.
The market share of Light Emitting Diodes (LEDs) in the lighting world is growing quickly (4% in 2013 to an expected 74% in 2030), mainly due to the high energy efficiency compared with traditional lamps. However, the white light which is produced by LEDs does not have the same color temperature as is produced by (for example) incandescent lamps which are perfect black body radiators. Blue light from the LED propagates through a slab of scattering material, where phosphor particles convert the light to different wavelengths, composing white light. To study the extremely complex scatter process inside this phosphor layer, a cloud of dust particles being confined inside a plasma is used as a dynamic scatter sample. When macroscopic dust particles are immersed in a discharge, they acquire a negative charge due to the significant difference in mobility between electrons and ions. Due to this negative charge, dust particles are being confined by the electrostatic field in the plasma sheath at the border of the discharge. By changing the plasma parameters, particle cloud properties like density and configuration can be controlled carefully. Light scattering on dust particles is commonly used to study the behavior of dusty plasmas. In this research however, a dusty plasma is used as a tool to study scattering of light. The unique advantage of this technique is that properties of the sample can be changed I) in-situ and II) by just “turning a knob”. A sophisticated setup is designed and developed, allowing spectroscopic measurements at 360° around the dust cloud. Presented will be the first obtained results from this setup concerning the energy density of the.
Summary form only given. Dusty plasmas (plasmas containing charged dust grains of micron to sub-micron size) occur in a wide variety of space and laboratory environments. The presence of dust, with a much smaller charge-to-mass ratio than the ions, can both modify the properties of standard ion waves and instabilities and give rise to new low frequency dust waves and instabilities. Dusty plasmas in the laboratory may exhibit strong coupling (i.e., the electrostatic interaction energy between neighboring grains exceeds their kinetic energy) which also affects wave properties. Here, recent theoretical work on several instabilities in collisional dusty plasmas is summarized, with applications to dusty plasmas in the Earth's lower ionosphere and in laboratory experiments where neutral densities are relatively high. Instabilities driven by electron cross-field drifts are considered with application to dusty plasmas in the upper mesosphere or low E-region (e.g., dusty meteor trails or polar mesosphere summer echo regions). This includes studies of the effects of charged dust on electrojet instabilities and conditions for exciting low frequency dust acoustic instabilities, along with implications for radar scattering. Dust wave instabilities driven by ion drifts are discussed with application to various laboratory dusty plasma wave experiments. This includes studies of a very low frequency resistive instability, and the effects of strong coupling on ion-dust streaming instabilities. Aspects of the interaction of electromagnetic waves with strongly coupled dusty plasmas are also considered.
A two-dimensional (2-D) numerical model is presented to study low-frequency ion waves and instabilities in magnetized dusty plasmas. Fundamental differences exist between dusty plasmas and electron-ion plasmas because of dust charging processes. Therefore, a primary goal of this investigation is to consider the unique effects of dust charging on collective effects in dusty plasmas. The background plasma electrons and ions are treated as two interpenetrating fluids whose densities are self-consistently reduced by dust charging. The dust is treated with a particle-in-cell (PIC) model in which the dust charge varies with time according to the standard dust charging model. Fourier spectral methods with a predictor-corrector time advance are used to temporally evolve the background plasma electron and ion equations. The dust charge fluctuation mode and the damping of lower hybrid oscillations due to dust charging, as well as plasma instabilities associated with dust expansion into a background plasma, are investigated using our numerical model. The numerical simulation results show good agreement with previous theoretical predictions and provide further insight into dust charging effects on wave modes and instabilities in dusty plasmas.
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