The effects of self-consistent electric field on the neoclassical transport in tokamaks with stochastic magnetic fields

2011 ◽  
Vol 18 (1) ◽  
pp. 014504 ◽  
Author(s):  
R. A. Kolesnikov
1980 ◽  
Vol 45 (7) ◽  
pp. 562-565 ◽  
Author(s):  
P. H. Diamond ◽  
T. H. Dupree ◽  
D. J. Tetreault

1988 ◽  
Vol 6 (3) ◽  
pp. 587-591 ◽  
Author(s):  
V. T. Astrelint ◽  
P. Vrba ◽  
J. Ullschmied ◽  
M. Člupek

We studied the electron beam generation in high-current diode with various cathode shapes and the beam propagation through vacuum or plasma delivered to metallic drift tube. The combined effect of external longitudinal and self-consistent azimuthal magnetic fields with the accelerating electric field is discussed. We are interested in obtaining the diode efficiency and beam characteristic in stationary state.


2020 ◽  
Vol 35 (26) ◽  
pp. 2050168
Author(s):  
S. I. Kruglov

The source of the universe inflation is electromagnetic fields obeying rational nonlinear electrodynamics proposed earlier. Within this model the singularities of the electric field at the center of charges, the Ricci scalar, the Ricci tensor squared and the Kretschmann scalar are absent. We consider the universe which is filled by stochastic magnetic fields. It is demonstrated that the inflation lasts approximately [Formula: see text] s with the reasonable [Formula: see text]-folding number [Formula: see text]. The inflation starts from de Sitter space–time and after the universe inflation end it decelerates approaching the radiation era.


2000 ◽  
Vol 10 (09) ◽  
pp. 1305-1332 ◽  
Author(s):  
L. SAINT-RAYMOND

Consider a plasma in a strong constant magnetic field with self-consistent electric field. We present here the formal derivation that leads to the so-called guiding center approximation, and justify it in the case of a well-prepared initial density of particles. More precisely, we prove that the motion of the particles can be approximatively decomposed as the sum of a fast rotation on Larmor circles, an advection along the magnetic lines and a small drift orthogonal to both electric and magnetic fields.


2004 ◽  
Vol 18 (27n29) ◽  
pp. 3637-3640
Author(s):  
V. F. RADANTSEV ◽  
G. I. KULAEV ◽  
V. V. KRUZHAEV

The effects of kinetic confinement and forming of surface bound states at a zero external electric field (ZEF) are studied experimentally (by the magneto-capacitance spectroscopy of Landau level method) and theoretically (in 8×8 Kane model). The self-consistent calculations we performed predict the existence of occupied kinetically bound but not true bound states at a zero interface electric field that is in agreement with experimental data. The capacitance oscillations at in 2D plane magnetic fields orientation we observed are associated with oscillations of continuum electrons screening length.


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