scholarly journals Testing electric and magnetic field models of the storm-time inner magnetosphere

2000 ◽  
Vol 105 (A11) ◽  
pp. 25221-25231 ◽  
Author(s):  
Lynn M. Kistler ◽  
Douglas J. Larson
Keyword(s):  
Magnetic Field ◽  
Inner Magnetosphere ◽  
Electric And Magnetic Field

Large amplitude electric and magnetic field signatures in the inner magnetosphere during injection of 15 MeV electron drift echoes

1994 ◽  
Vol 21 (16) ◽  
pp. 1739-1742 ◽  
Author(s):  
J. Wygant ◽  
F. Mozer ◽  
M. Temerin ◽  
J. Blake ◽  
N. Maynard ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Large Amplitude ◽  
Electron Drift ◽  
Inner Magnetosphere ◽  
Electric And Magnetic Field

scholarly journals Van Allen Probe observations of drift-bounce resonances with Pc 4 pulsations and wave–particle interactions in the pre-midnight inner magnetosphere

2015 ◽  
Vol 33 (8) ◽  
pp. 955-964 ◽  
Author(s):  
G. I. Korotova ◽  
D. G. Sibeck ◽  
K. Tahakashi ◽  
L. Dai ◽  
H. E. Spence ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electric Fields ◽  
Ion Flux ◽  
Ion Fluxes ◽  
Particle Interactions ◽  
Inner Magnetosphere ◽  
Energetic Proton ◽  
Electric And Magnetic Field ◽  
Low Energies ◽  
Energy Dependent

Abstract. We present Van Allen Probe B observations of azimuthally limited, antisymmetric, poloidal Pc 4 electric and magnetic field pulsations in the pre-midnight sector of the magnetosphere from 05:40 to 06:00 UT on 1 May 2013. Oscillation periods were similar for the magnetic and electric fields and proton fluxes. The flux of energetic protons exhibited an energy-dependent response to the pulsations. Energetic proton variations were anticorrelated at medium and low energies. Although we attribute the pulsations to a drift-bounce resonance, we demonstrate that the energy-dependent response of the ion fluxes results from pulsation-associated velocities sweeping energy-dependent radial ion flux gradients back and forth past the spacecraft.

Approaching to the ideal condition of plasma confinement by applying external resonant fields in IR-T1 tokamak

2015 ◽  
Vol 81 (3) ◽  
Author(s):  
Sakineh Meshkani ◽  
Mahmood Ghoranneviss ◽  
Mansoureh Lafouti
Keyword(s):  
Magnetic Field ◽  
Turbulent Transport ◽  
Edge Plasma ◽  
Ideal Condition ◽  
Plasma Confinement ◽  
Applied Bias ◽  
Inverse Results ◽  
Electric And Magnetic Field ◽  
Helical Magnetic Field ◽  
The Ideal

For understanding the effect of resonant helical magnetic field (RHF) and bias on the edge plasma turbulent transport, the radial and poloidal electric field (Er, EP), poloidal and toroidal magnetic field (BP, Br) were detected by the Langmuir probe, magnetic probe and diamagnetic loop. The poloidal, toroidal and radial velocity (VP, Vr, Vt) can be determined from the electric and magnetic field. In the present work, we have investigated the effect of the magnitude of bias (Vbias = 200v, Vbias = 320v) on Er, EP, BP, Bt, VP, Vr, Vt. Moreover, we applied RHF with L = 2, L = 3 and L = 2 and 3 and investigate the effect of the helical windings radius on above parameters. Also, the experiment was repeated by applying the positive biasing potentials and RHF's simultaneously. The results show that by applying bias to the plasma at t = 15 msec at r/a = 0.9, Er, BP and Bt increase while EP decreases. The best modification occurs at Vbias = 200v. By applying RHF to the plasma, both the electric and magnetic field vary. Er reaches the highest in the presence of RHF with L = 3. The same results are obtained for BP, Bt, VP and Vt. While the inverse results are obtained for EP and Vr. Finally, RHF and bias are applied simultaneously to the plasma. With applied bias with Vbias = 200v and RHF with L = 2 and 3, we reach to the ideal circumstance. The same results obtain in the situation with Vbias = 320v and RHF with L = 2 and 3.

Electric and magnetic field dependence of the conductivity in poly(3-hexylthiophene langmuir-blodgett films

1993 ◽  
Vol 57 (2-3) ◽  
pp. 4997-5002 ◽  
Author(s):  
E. Punkka ◽  
M.F. Rubner ◽  
J.D. Hettinger ◽  
J.S. Brooks ◽  
S.T. Hannahs
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Langmuir Blodgett ◽  
Electric And Magnetic Field ◽  
Langmuir Blodgett Films
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