Floating potential of a small particle in a plasma: Difference between Maxwellian and Druyvesteyn electron velocity distributions

Khrapak, Sergey
October 2010
Physics of Plasmas;Oct2010, Vol. 17 Issue 10, p104502
Academic Journal
The floating potential of a small spherical particle immersed in a plasma is calculated for two different electron velocity distributions functions, Maxwellian and Druyvesteyn ones. It is shown that for plasma conditions typical for laboratory gas discharges, the difference between the floating potentials for these two distributions is small, provided the mean energy of the electrons is the same. The obtained results can be useful in the context of complex (dusty) plasmas.


Related Articles

  • Development of an optical method for studying sizes and shapes of microparticles in dusty plasmas in situ. Zharikov, N. E.; Khakhaev, A. D.; Scherbina, A. I. // AIP Conference Proceedings;11/28/2011, Vol. 1397 Issue 1, p221 

    We have developed an optical method for quantitative measurement of physical parameters of micro-particles subsystem in dusty plasmas produced in a glow discharge. We attempt to solve the problem of recognizing a real shape and size of dust particles levitating in plasma in situ.

  • Initial measurement of the kinetic dust temperature of a weakly coupled dusty plasma. Williams, Jeremiah D.; Thomas, Edward // Physics of Plasmas;Jun2006, Vol. 13 Issue 6, p063509 

    Measurements of the velocity space distribution function of 2.9 μm diameter silica particles in an argon dc glow discharge dusty plasma are made through the use of stereoscopic particle image velocimetry (stereo-PIV). These distribution functions are then used to determine the kinetic...

  • Scaling Law for Shear Viscosity in Yukawa Systems. Vaulina, O. S.; Shakhova, I. A.; Petrov, O. F.; Gavrikov, A. V. // AIP Conference Proceedings;2005, Vol. 799 Issue 1, p434 

    The empirical scaling law for shear viscosity and the relation between the viscosity, and diffusion constants are proposed for strongly correlated Yukawa systems. The presented analytical and numerical results are in a good accordance with the experimental investigations of transport of dust...

  • Analysis of the neutral drag force in a dc glow discharge dusty plasma. Thomas Jr., Edward; Williams, Jeremiah // AIP Conference Proceedings;2005, Vol. 799 Issue 1, p279 

    In this paper, the authors report on a series of experiments that use carefully applied perturbations to a dust cloud to reproducibly investigate the formation of the microparticle cloud and the formation of dust cloud-plasma interface. Here, one micron diameter alumina microparticles are...

  • Plate-like Dusty Structures in an e-Beam Sustained Glow Discharge at Atmospheric Pressure. Filippov, Anatoly V.; Babichev, Valery N.; Pal', Alexander F.; Starostin, Andrey N. // AIP Conference Proceedings;2005, Vol. 799 Issue 1, p121 

    The paper is devoted to studying the dusty plasma created by the injection of dust particles into the atmospheric pressure gas ionized by an electron beam of 85–120 keV energy. The beam current density was varied within 0.1–1.0 mA/cm2. The electron gun operated in the stationary...

  • Effects of the Nonlocal Electron Distribution in a Plasma Display Cell. Ivanov, V. V.; Mankelevich, Yu. A.; Proshina, O. V.; Rakhimova, T. V. // Technical Physics Letters;Dec2000, Vol. 26 Issue 12, p1061 

    A self-consistent hybrid model of discharge in a plasma display cell is proposed, which provides an adequate description of a nonlocal electron distribution in nonstationary cases. A comparative analysis of the results of calculations based on the hybrid (nonlocal) and local models reveals...

  • Plasma parameters analysis of various mixed gas inductively coupled plasmas. Bai, K. H.; You, S. J.; Chang, H. Y.; Uhm, H. S. // Physics of Plasmas;Jun2002, Vol. 9 Issue 6, p2831 

    The electron energy distribution functions and plasma parameters in various gas mixture discharges (N[sub 2], O[sub 2], CF[sub 4]/He,Ar,Xe) are measured. When He is mixed, the electron temperature increases but the electron density is almost constant. The electron temperature increases rapidly...

  • Structural Analysis of Dusty Plasma Formations Based on Spatial Spectra. Khakhaev, A. D.; Luizova, L. A.; Piskunov, A. A.; Podryadchikov, S. F.; Soloviev, A. V. // AIP Conference Proceedings;9/7/2008, Vol. 1041 Issue 1, p307 

    Some advantages of studying the structure of dusty plasma formations using spatial spectra are illustrated by simulated experiments and by processing actual images of dusty structures in dc glow discharge in inert and molecular gases

  • Nonlinear dust acoustic waves in magnetized two-ion-temperature dusty plasmas. Lin, Mai-mai; Duan, Wen-shan // Physics of Plasmas;Dec2004, Vol. 11 Issue 12, p5710 

    A Zakharov–Kuznetsov (ZK) equation, a modified ZK equation and a coupled ZK equation for small but finite amplitude dust acoustic waves in a magnetized two-ion-temperature dusty plasma with dust size distribution have been obtained in this paper. It seems that the soliton velocity for a...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics