Dusty Plasmas in the Laboratory, Industry, and Space

Merlino, R. L.; Goree, J.

doi:10.1063/1.1784300

Cited by 394 publications

(246 citation statements)

References 23 publications

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“…These plasmas have been intensively explored (see reviews [1][2][3][4][5] and literature cited therein). The analysis of dusty plasmas combines fundamentals of plasma and atomic physics, innovative experiments and diagnostics, environmental issues, and novel industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Dust-particle transport in tokamak edge plasmas

Pigarov

Krasheninnikov

Soboleva³

et al. 2005

Physics of Plasmas

139

120

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Dust particulates in the size range of 10nm-100µm are found in all fusion devices. Such dust can be generated during tokamak operation due to strong plasma/material-surface interactions. Some recent experiments and theoretical estimates indicate that dust particles can provide an important source of impurities in the tokamak plasma. Moreover, dust can be a serious threat to the safety of next-step fusion devices. In this paper, recent experimental observations on dust in fusion devices are reviewed. A physical model for dust transport simulation, and a newly developed code DUSTT, are discussed. The DUSTT code incorporates both dust dynamics due to comprehensive dust-plasma interactions as well as the effects of dust heating, charging, and evaporation. The code tracks test dust particles in realistic plasma backgrounds as provided by edge-plasma transport codes. Results are presented for dust transport in current and next-step tokamaks. The effect of dust on divertor plasma profiles and core plasma contamination is examined.3

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Section: Introductionmentioning

confidence: 99%

Dust-particle transport in tokamak edge plasmas

Pigarov

Krasheninnikov

Soboleva³

et al. 2005

Physics of Plasmas

139

120

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“…The occurrence of a minimum in the potential in the direction of the velocity is also observed in so-called complex plasmas. Complex plasmas are classical, low-temperature plasmas containing particles with a diameter of a few microns [23]. These particles are charged in the plasma by collecting electrons on their surface.…”

mentioning

confidence: 99%

Screening of a moving parton in the quark-gluon plasma

2005

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The screening potential of a parton moving through a quark-gluon plasma is calculated using the semi-classical transport theory. An anisotropic potential showing a minimum in the direction of the parton velocity is found. As consequences possible new bound states in the quark-gluon plasma and J/ψ dissociation are discussed.Screening of charges in a plasma is one of the most important collective effects in plasma physics. In the classical limit in an isotropic and homogeneous plasma the screening potential of a point-like test charge Q at rest can be derived from the linearized Poisson equation, resulting in Debye screening. In this way the Coulomb potential of a charge in the plasma is modified into a Debye-Hückel or Yukawa potential [1]with the Debye mass (inverse screening length) m D (h = c = k B = 1). A special kind of plasma is the so-called quark-gluon plasma (QGP), where the electric charges in a plasma are replaced by the color charges of quarks and gluons, mediating the strong interactions between them. Such a state of matter is expected to exist at extreme temperatures, above 150 MeV, or densities, above about 10 times nuclear density. These conditions could be fulfilled in the early Universe for the first few microseconds or in the interior of neutron stars. In accelerator experiments high-energy nucleus-nucleus collisions are used to search for the QGP. In these collisions a hot and dense fireball is created which might consist of a QGP in an early stage (less than about 10 fm/c) [2]. Since the masses of the lightest quarks and of the actually massless gluons are much less than the temperature of the system, the QGP is an ultrarelativistic plasma. To achieve a theoretical understanding of the QGP, methods from quantum field theory (QCD) at finite temperature are adopted [3]. Perturbative QCD should work at high temperatures far above the phase transition where the interaction between the quarks and gluons becomes weak due to a specific property of QCD called asymptotic freedom. An important quantity which can be derived in this way is the polarization tensor describing the behavior of interacting gluons in the QGP. From the polarization tensor important properties of the QGP, such as the dispersion relation and damping of the plasma modes or the Debye screening of color charges in the QGP can be derived [4].In the QGP the Debye mass of a chromoelectric charge follows from the static limit of the longitudinal polarization tensor in the high-temperature limit [4],where g is the strong coupling constant and n f the number of light quark flavors in the QGP with m q ≪ T . The high-temperature limit of the polarization tensor corresponds to the classical approximation. For instance, it is closely related to the dielectric function following from the semi-classical Vlasov equation describing a collisionless plasma. E.g., the longitudinal dielectric function following from the Vlasov equation is given by [5][6][7] (The only non-classical inputs here are Fermi and Bose distributions instead of the Boltzmann d...

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“…auroral plasma, Saturns Eand F-rings, etc.) [42][43][44][45] and laboratory [45][46][47] dusty plasmas. …”

Section: Resultsmentioning

confidence: 99%

Multi-dimensional instability of dust-ion-acoustic solitary structure with opposite polarity ions and non-thermal electrons

Haider

Rahman

2016

J Theor Appl Phys

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An attempt has been made to study the multidimensional instability of dust-ion-acoustic (DIA) solitary waves (SWs) in magnetized multi-ion plasmas containing opposite polarity ions, opposite polarity dusts and nonthermal electrons. First of all, we have derived ZakharovKuznetsov (ZK) equation to study the DIA SWs in this case using reductive perturbation method as well as its solution. Small-k perturbation technique was employed to find out the instability criterion and growth rate of such a wave which can give a guideline in understanding the space and laboratory plasmas, situated in the D-region of the Earth's ionosphere, mesosphere, and solar photosphere, as well as the microelectronics plasma processing reactors.

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Dusty Plasmas in the Laboratory, Industry, and Space

Abstract: Charged microparticles are an annoyance in the plasmas of fusion energy schemes and semiconductor manufacturing. But in laboratory plasmas and in space, they can be uniquely informative.

Cited by 394 publications

References 23 publications

Dust-particle transport in tokamak edge plasmas

Dust-particle transport in tokamak edge plasmas

Screening of a moving parton in the quark-gluon plasma

Multi-dimensional instability of dust-ion-acoustic solitary structure with opposite polarity ions and non-thermal electrons

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