scholarly journals Time development of a current-free double-layer

2004 ◽  
Vol 11 (8) ◽  
pp. 3808-3812 ◽  
Author(s):  
C. Charles ◽  
R. W. Boswell
Keyword(s):  
Double Layer ◽  
Time Development ◽  
A Current

Observation of a current-limited double layer in a linear turbulent-heating device

1985 ◽  
Vol 28 (2) ◽  
pp. 703 ◽  
Author(s):  
Hiroshi Inuzuka ◽  
Yutaka Torii ◽  
Masaaki Nagatsu ◽  
Takashige Tsukishima
Keyword(s):  
Double Layer ◽  
Heating Device ◽  
Turbulent Heating ◽  
A Current

scholarly journals A Study of Current Controlled Discharge in a Nitrogen Filled Tube

2021 ◽  
Vol 11 (21) ◽  
pp. 10253
Author(s):  
Michal Nevrkla ◽  
Jakub Hubner ◽  
Jiri Sisma ◽  
Pavel Vrba ◽  
Miroslava Vrbova ◽  
...  
Keyword(s):  
Laser Beam ◽  
Electron Density ◽  
Electrical Resistance ◽  
Computer Modelling ◽  
Sapphire Laser ◽  
Time Development ◽  
Laboratory Results ◽  
Time Dependencies ◽  
Computer Codes ◽  
A Current

Time dependencies of the electrical resistance and electron density evolution in the discharge in a tube, with nitrogen at different pressures, with a diameter of 9.2mm and a length of 10cm were studied. A current pulse with an amplitude of 500A and duration of 10μs has created the discharge in the tube. Instantaneous electron densities are estimated from the interference pattern in Mach–Zehnder interferometer using femtosecond Ti: sapphire laser beam. Laboratory results are compared with results of computer modelling by MHD computer codes NPINCH and ZSTAR. Time development of the discharge resistance according to experiment is measured and evaluated. Minimum measurable value of the electron density in the experiment is determined as 2×1015cm−3.

Electron acoustic double layer in a current-carrying magnetized plasma

1988 ◽  
Vol 36 (10) ◽  
pp. 1009-1013 ◽  
Author(s):  
S. Sutradhar Das ◽  
S. Bujarbarua
Keyword(s):  
Double Layer ◽  
Magnetized Plasma ◽  
Electron Acoustic ◽  
A Current

scholarly journals Vlasov simulations of parallel potential drops

2013 ◽  
Vol 31 (7) ◽  
pp. 1227-1240 ◽  
Author(s):  
H. Gunell ◽  
J. De Keyser ◽  
E. Gamby ◽  
I. Mann
Keyword(s):  
Double Layer ◽  
Flux Tube ◽  
Potential Drop ◽  
Initial State ◽  
Current Voltage ◽  
Electron Distributions ◽  
Current Voltage Relationship ◽  
Voltage Relationship ◽  
Total Voltage ◽  
A Current

Abstract. An auroral flux tube is modelled from the magnetospheric equator to the ionosphere using Vlasov simulations. Starting from an initial state, the evolution of the plasma on the flux tube is followed in time. It is found that when applying a voltage between the ends of the flux tube, about two thirds of the potential drop is concentrated in a thin double layer at approximately one Earth radius altitude. The remaining part is situated in an extended region 1–2 Earth radii above the double layer. Waves on the ion timescale develop above the double layer, and they move toward higher altitude at approximately the ion acoustic speed. These waves are seen both in the electric field and as perturbations of the ion and electron distributions, indicative of an instability. Electrons of magnetospheric origin become trapped between the magnetic mirror and the double layer during its formation. At low altitude, waves on electron timescales appear and are seen to be non-uniformly distributed in space. The temporal evolution of the potential profile and the total voltage affect the double layer altitude, which decreases with an increasing field aligned potential drop. A current–voltage relationship is found by running several simulations with different voltages over the system, and it agrees with the Knight relation reasonably well.

Observations of Ion-Beam Formation in a Current-Free Double Layer

2005 ◽  
Vol 95 (2) ◽  
Author(s):  
Xuan Sun ◽  
Amy M. Keesee ◽  
Costel Biloiu ◽  
Earl E. Scime ◽  
Albert Meige ◽  
...  
Keyword(s):  
Double Layer ◽  
Ion Beam ◽  
Beam Formation ◽  
A Current

Upstream Ionization Instability Associated with a Current-Free Double Layer

2006 ◽  
Vol 97 (7) ◽  
Author(s):  
A. Aanesland ◽  
C. Charles ◽  
M. A. Lieberman ◽  
R. W. Boswell
Keyword(s):  
Double Layer ◽  
A Current

scholarly journals Particle-in-cell simulations of a current-free double layer

2011 ◽  
Vol 18 (6) ◽  
pp. 063502 ◽  
Author(s):  
S. D. Baalrud ◽  
T. Lafleur ◽  
R. W. Boswell ◽  
C. Charles
Keyword(s):  
Double Layer ◽  
Particle In Cell ◽  
A Current

One-dimensional particle-in-cell simulation of a current-free double layer in an expanding plasma

2005 ◽  
Vol 12 (5) ◽  
pp. 052317 ◽  
Author(s):  
Albert Meige ◽  
Rod W. Boswell ◽  
Christine Charles ◽  
Miles M. Turner
Keyword(s):  
Double Layer ◽  
One Dimensional ◽  
Particle In Cell ◽  
Cell Simulation ◽  
A Current
Sign in / Sign up

Export Citation Format

Share Document