Gregory A. Hebner
Sandia National Laboratories
48 Papers
512 Citations
Gregory A. Hebner is an academic researcher from Sandia National Laboratories. The author has contributed to research in topics: Plasma & Plasma diagnostics. The author has an hindex of 21, co-authored 48 publications.
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Papers
Analysis of the particle interactions in a two-dimensional-plasma dust crystal and the use of dust as a probe of the time-averaged presheath electric field.
TL;DR: Measurements showed that the particles are confined to the bulk-plasma side of the classical Bohm point, as well as determining plasma presheath electric fields.
74
Ion energy and angular distributions in inductively driven radio frequency discharges in chlorine
TL;DR: In this article, the ion energy and angular distribution at the grounded electrode of an inductively coupled discharge in chlorine gas was measured at a single peak well separated from zero energy, and the ion energies varied inversely with pressure, decreasing from 13 to 9 eV as the discharge pressure increased from 20 to 60 mTorr.
64
Dynamic probe of dust wakefield interactions using constrained collisions.
TL;DR: The magnitude and the structure of the ion-wakefield potential below a negatively charged dust particle levitated in the plasma-sheath region have been determined and it is shown that the peak attraction was on the order of 100 fN.
55
Negative ion density in inductively coupled chlorine plasmas
TL;DR: In this article, the negative ion radial distribution was relatively constant, with a 20% decrease in the center of the plasma for some operating conditions, when the bias electrode was changed from sta...
49
Direct determination of particle-particle interactions in a 2D plasma dust crystal.
TL;DR: Particle interactions were directly determined from the lateral compression of two-dimensional plasma dust crystals confined in a parabolic potential well using measured particle separations combined with an equation of state for the crystal to derive values for the particle screening length and the charge.
47