Particle charge in the bulk of gas discharges

Khrapak, S. A.; Ratynskaia, S.; Zobnin, A.; Usachev, A. D.; Yaroshenko, V. V.; Thoma, Markus H.; Kretschmer, M.; Höfner, H.; Morfill, G. E.; Петров, О. Ф.; Фортов, В. Е.

doi:10.1103/physreve.72.016406

Cited by 314 publications

(315 citation statements)

References 64 publications

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“…The electron and ion fluxes from the PIC simulation of the RF plasma and the resulting charge on the particle are shown in figure 8. The plasma parameters together with analytical models like OML or the Khrapak model are used to compute the dust charge in the RF discharge [27,31]. The predicted charge at the particle if placed inside the plasma bulk amounts to about −6.3 × 10 6 elementary charges, which is in reasonable agreement with the charge obtained from the analytical analysis (see above).…”

Section: Particle's Chargesupporting

confidence: 72%

Behavior of a porous particle in a radiofrequency plasma under pulsed argon ion beam bombardment

et al. 2010

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Section: Particle's Chargesupporting

confidence: 72%

Behavior of a porous particle in a radiofrequency plasma under pulsed argon ion beam bombardment

et al. 2010

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“…The observations of DAWs and measurements of dust-acoustic (sound) velocities have been used to obtain useful information about dusty plasmas systems under various conditions [4][5][6][7][8][9][10][11][12][13][14][15] (we mainly concentrate on three-dimensional particle clouds here, which is also reflected in the reference list). In particular, experimentally measured DAW dispersion relations and sound velocities have been repeatedly used to estimate the electrical charge of particles in dusty plasmas under laboratory and microgravity conditions [16][17][18][19][20], employing various experimental techniques. For other aspects of DAWs and their significance for the field of dusty (complex) plasmas see, for instance, Refs.…”

Section: Introductionmentioning

confidence: 99%

Fluid approach to evaluate sound velocity in Yukawa systems and complex plasmas

Khrapak¹,

Thomas²

2015

Phys. Rev. E

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The conventional fluid description of multi-component plasma, supplemented by an appropriate equation of state for the macroparticle component, is used to evaluate the longitudinal sound velocity of Yukawa fluids. The obtained results are in very good agreement with those obtained earlier employing the quasi-localized charge approximation and molecular dynamics simulations in a rather broad parameter regime. Thus, a simple yet accurate tool to estimate the sound velocity across coupling regimes is proposed, which can be particularly helpful in estimating the dust-acoustic velocity in strongly coupled dusty (complex) plasmas. It is shown that, within the present approach, the sound velocity is completely determined by particle-particle correlations and the neutralizing medium (plasma), apart from providing screening of the Coulomb interaction, has no other effect on the sound propagation. The ratio of the actual sound velocity to its "ideal gas" (weak coupling) scale only weakly depends on the coupling strength in the fluid regime, but exhibits a pronounced decrease with the increase of the screening strength. The limitations of the present approach in applications to real complex plasmas are briefly discussed.

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“…Ref. [28]). In this case an analytic expression for the dielectric functions containing the collision rate can be derived for ultrarelativistic plasmas [29].…”

Section: The Weakly-coupled Quark-gluon Plasmamentioning

confidence: 99%

What can we learn from electromagnetic plasmas about the quark–gluon plasma?

Thoma¹

2009

J. Phys. A: Math. Theor.

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Ultra-relativistic electromagnetic plasmas can be used for improving our understanding of the quark-gluon plasma. In the weakly coupled regime both plasmas can be described by transport theoretical and quantum field theoretical methods leading to similar results for the plasma properties (dielectric tensor, dispersion relations, plasma frequency, Debye screening, transport coefficients, damping and particle production rates). In particular, future experiments with ultra-relativistic electron-positron plasmas in ultra-strong laser fields might open the possibility to test these predictions, e.g. the existence of a new fermionic plasma wave (plasmino). In the strongly coupled regime electromagnetic plasmas such as complex plasmas can be used as models or at least analogies for the quark-gluon plasma possibly produced in relativistic heavy-ion experiments. For example, pair correlation functions can be used to investigate the equation of state and cross section enhancement for parton scattering can be explained.

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Particle charge in the bulk of gas discharges

Cited by 314 publications

References 64 publications

Behavior of a porous particle in a radiofrequency plasma under pulsed argon ion beam bombardment

Behavior of a porous particle in a radiofrequency plasma under pulsed argon ion beam bombardment

Fluid approach to evaluate sound velocity in Yukawa systems and complex plasmas

What can we learn from electromagnetic plasmas about the quark–gluon plasma?

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