Concept

Debye sheath

Related publications (41)

High-order nodal discontinuous Galerkin particle-in-cell method on unstructured grids

We present a high-order particle-in-cell (PIC) algorithm for the simulation of kinetic plasmas dynamics. The core of the algorithm utilizes an unstructured grid discontinuous Galerkin Maxwell field solver combining high-order accuracy with geometric flexib ...

Elsevier2006

Interaction of polyelectrolytes with oppositely charged surfaces

Vesela Malinova

Despite progress during the last decade, the behavior of charged macromolecules, polyelectrolytes, including their interactions is not yet completely understood. In particular, interactions with oppositely charged surfaces, which play a significant role in ...

EPFL2005

Particle-in-cell simulations of the impact of retarding field analyser probe head geometry on ion saturation current measurements

Richard Pitts

The Retarding Field Analyser (REA) is essentially the only practical tool for the measurement of ion energies parallel to the total magnetic field in the tokamak scrape-off layer plasma. One such device has recently been successfully employed at JET [1]. I ...

2004

Specific heat capacity and Debye temperature of zirconia and its solid solution

Manuel Alexandre Pouchon

Specific heat CP of zirconia and yttria stabilized zirconia doped or not with erbia and ceria was measured from 128 to 823 K and of yttria stabilized zirconia doped with erbia and plutonia from 443 to 1573 K. The new determined data were modelled using Deb ...

Elsevier2003

Counterion Activity of Highly Charged Strong Polyelectrolytes

Jutta Christine Wandrey, David Hunkeler

Comprehensive counterion activity studies have revealed clear influence of the polyelectrolyte concn. and chain length on the polyion-counterion interaction, neither of which is evident from the existing theor. models. The counterion activity coeff. (fa) i ...

2000

Concentration regimes in polyelectrolyte solutions

Jutta Christine Wandrey

A general description of the electrolytic cond. behavior of highly charged strong polyelectrolytes in dil. and semidilute aq. solns. is presented. For the first time this model considers the effects of the molar mass, charge d. (for charge distances less t ...

1999

Partial Molar and Specific Volumes of Polyelectrolytes: Comparison of Experimental and Predicted Values in Salt-free Solutions

Jutta Christine Wandrey, David Hunkeler, Artur Bartkowiak

The partial molar volume, .hivin.V, and the partial sp. vol., .hivin.n, were estd. for more than 25 polyelectrolyte structures. The materials investigated by d. measurements in highly dild. aq. solns. (c < 10-2 monomol/L) included both synthetic polyelectr ...

1999

Kinetic modeling of scrape-off layer plasmas

Olivier Sauter

Electron transport along open field lines in the diverted scrape-off layer of a tokamak is studied numerically via a kinetic Fokker-Planck approach. The method allows calculation of the distribution function in a situation where large parallel temperature ...

1996

Sheath impedance effects in very high frequency plasma experiments

Christoph Hollenstein, Stephan Brunner, Alan Howling

The frequency dependence (13.56-70 MHz) of the ion energy distribution at the ground electrode was measured by mass spectrometry in a symmetrical capacitive impedance at very high frequency allows high levels of plasma power and substrate ion flux while ma ...

1996

Reconstruction of the Time-Averaged Sheath Potential Profile in an Argon Radiofrequency Plasma Using the Ion Energy-Distribution

Christoph Hollenstein, Stephan Brunner, Alan Howling

Charge-exchange collisions and radio frequency (RF) excitation combine to give peaks in the ion energy distribution measured at the ground electrode of an argon plasma in a capacitive reactor. These peaks are used as a diagnostic to reconstruct the profile ...

1995

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