TITLE

Experimental Study of Coulomb crystal formation in Hollow Cathode discharge

AUTHOR(S)
Agarwal, A. K.; Prasad, G.
PUB. DATE
December 2002
SOURCE
AIP Conference Proceedings;2002, Vol. 649 Issue 1, p261
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The formation of macroscopic ordered structures in hollow cathode discharge in Ar plasma has been observed. A Coulomb quasicrystal is formed by alumina grains with diameter of 70 to 140 µm. A simple phenomenological model where in the intergrain spacing results from an attractive electric-field-induced dipole-dipole force balanced by a repulsive monopole Coulomb force is used to explain the observed features of the Coulomb crystal.
ACCESSION #
8633370

 

Related Articles

  • Two-temperature equilibration rate for a two-component (e.g., antihydrogen) plasma in a Penning trap. Chang, Yongbin; Ordonez, C. A. // AIP Conference Proceedings;2002, Vol. 606 Issue 1, p550 

    An expression for an equilibration time scale is developed that characterizes the rate for a group of test particles with a Maxwellian velocity distribution but different temperature from that of Maxwellian field particles to relax to the same temperature of the field particles. The expression,...

  • All particle simulations of cathodic arc plasmas. Cooper, I. J.; McKenzie, D. R. // Journal of Applied Physics;5/1/2006, Vol. 99 Issue 9, p093304 

    The early stages of the expansion of fully ionized cathode spot cathodic arc plasmas from a localized initial volume are simulated by an all particle molecular dynamics model. The particles are given an initial temperature and interact by Coulomb forces. Although there are limits on the number...

  • Pulsed hot cathode (LaB6) discharge for uniform plasma production. Savas, S. E.; Pyle, R. V.; Berkner, K. H. // Review of Scientific Instruments;Nov86, Vol. 57 Issue 11, p2699 

    A pulsed hot cathode hydrogen discharge of several milliseconds duration is used to produce a dense (<10[sup 14] cm[sup -3]), uniform plasma target for atomic collision studies. This plasma, whose cross section is determined by the cathode shape, is rectangular, since it is produced by a...

  • Existence regions of regimes with anomalously high rates of plasma generation in grid plasma switch elements. Alekseev, N. I.; Kaplan, V. B.; Martsinovskii, A. M.; Stolyarov, I. I. // Technical Physics;Jun97, Vol. 42 Issue 6, p599 

    Results are presented from a systematic investigation of the conditions under which anomalously high rates of plasma generation are observed in the anode region of a low-voltage Knudsen arc in grid plasma switch elements. The phenomenon develops over a wide range of currents and switched...

  • Fused hollow cathode cold atmospheric plasma. Baránková, H.; Bárdos, L. // Applied Physics Letters;1/17/2000, Vol. 76 Issue 3 

    A fused hollow cathode (FHC) plasma source is introduced. The system of radio-frequency (rf) generated hollow cathodes with flowing gas forms an integrated electrode source which operates in the pressure range from 1 Torr to atmospheric pressure. The diameter of the source is 3.5 cm. However,...

  • Bohm criterion failure in nonstationary plasmas. Bliokh, Yu. P.; Felsteiner, J.; Slutsker, Ya. Z.; Vaisberg, P. M. // Physics of Plasmas;Aug2002, Vol. 9 Issue 8, p3311 

    The Bohm criterion, generally used as a boundary condition at the plasma-sheath edge, is not compatible with the time evolution of the voltage fall across the collisionless cathode sheath in a pulsed hollow-cathode discharge. Similarly this criterion is not valid for the interpretation of probe...

  • Characterization of the interaction between a hollow cathode source and an ambient plasma. Vannaroni, G.; Dobrowolny, M.; Melchioni, E.; De Venuto, F.; Giovi, R. // Journal of Applied Physics;5/15/1992, Vol. 71 Issue 10, p4709 

    Presents information on a study which investigated the laboratory characterization of the interaction between a hollow cathode plasma source and an ambient plasma of ionosopheric type. Description of the experimental setup; Polarizations of the hollow cathode contactor; Anomalous processes...

  • A high-current-density nonclosing plasma cathode. McGeoch, Malcolm W. // Journal of Applied Physics;2/1/1992, Vol. 71 Issue 3, p1163 

    Presents a study that demonstrated a novel plasma cathode. Discharge characteristics; Electron extraction; Discharge uniformity and gas use.

  • Collisional and radiative processes in high-pressure discharge plasmas. Becker, Kurt H.; Kurunczi, Peter F.; Schoenbach, Karl H. // Physics of Plasmas;May2002, Vol. 9 Issue 5, p2399 

    Discharge plasmas at high pressures (up to and exceeding atmospheric pressure), where single collision conditions no longer prevail, provide a fertile environment for the experimental study of collisions and radiative processes dominated by (i) step-wise processes, i.e., the excitation of an...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics