Title :
Cumulative Point—L1 Between Two Positively Charged Plasma Structures (3-D Strata)
Author_Institution :
Plasma Chem. Lab., Moscow Radiotechnical Inst., Moscow, Russia
Abstract :
Values of a cathode potential drop (CD) are estimated in nanosecond argon discharges with a hollow cathode over total number of strata in the discharge gap (n ~ 10). The CD dependence on the discharge parameters has been studied. The structurization of this discharge in experiments is analytically analyzed. It is proved that the strata in the nanosecond discharges are caused by the electron drift and the electron impact direct ionization forming the ionization-drift waves. The drift removal of electrons leads to formation of positively charged layers of a space charge, a significant increase of the peripheral ionization. At that the cumulation of the electron flow in to the plasma focuses takes place similar to cumulation of neural particle flows in to the Lagrange-Euler libration points L1. The cumulative points L1 arise between the attractors of any nature.
Keywords :
argon; electron impact ionisation; glow discharges; plasma collision processes; plasma drift waves; plasma focus; space charge; CD dependence; Lagrange-Euler libration points; cathode potential drop; cumulative point; discharge gap; electron drift; electron flow; electron impact direct ionization; hollow cathode discharges; nanosecond argon discharges; neural particle flows; plasma focuses; positively charged layers; positively charged plasma structures; space charge; Argon; Cathodes; Discharges (electric); Electric potential; Ionization; Nanoscale devices; Plasmas; 3-D strata; cathode potential drop (CD); cumulation of electrons; libration point; nanosecond discharge; peripheral ionization; strata; the $L_{1}$ cumulative point; the L¹ cumulative point; violation of neutrality; violation of neutrality.;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2365438
