Two-dimensional hybrid particle-in-cell simulations of magnetosonic waves in the dipole magnetic field: On a constant L-shell

2020 ◽  
Author(s):  
Kyungguk Min ◽  
Kaijun Liu ◽  
Richard E. Denton ◽  
Frantisek Nemec ◽  
Scott A. Boardsen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Two Dimensional ◽  
Hybrid Particle ◽  
Particle In Cell ◽  
Dipole Magnetic Field

scholarly journals Two‐Dimensional Hybrid Particle‐in‐Cell Simulations of Magnetosonic Waves in the Dipole Magnetic Field: On a Constant L ‐Shell

2020 ◽  
Vol 125 (10) ◽  
Author(s):  
Kyungguk Min ◽  
Kaijun Liu ◽  
Richard E. Denton ◽  
František Němec ◽  
Scott A. Boardsen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Two Dimensional ◽  
Hybrid Particle ◽  
Particle In Cell ◽  
Dipole Magnetic Field

scholarly journals Two-Dimensional Particle-in-Cell Simulation of Magnetosonic Wave Excitation in a Dipole Magnetic Field

2018 ◽  
Vol 45 (17) ◽  
pp. 8712-8720 ◽  
Author(s):  
Lunjin Chen ◽  
Jicheng Sun ◽  
Quanming Lu ◽  
Xueyi Wang ◽  
Xinliang Gao ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetosonic Wave ◽  
Two Dimensional ◽  
Wave Excitation ◽  
Particle In Cell ◽  
Dipole Magnetic Field ◽  
Cell Simulation

Two-dimensional particle-in-cell simulations of magnetosonic waves in the dipole magnetic field: On a constant L-shell

2020 ◽  
Author(s):  
Kyungguk Min ◽  
Kaijun Liu ◽  
Richard E. Denton ◽  
Frantisek Nemec ◽  
Scott A. Boardsen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Two Dimensional ◽  
Particle In Cell ◽  
Dipole Magnetic Field

scholarly journals Behaviour of Whistlers in Coronal Magnetic Traps and Its Relevance to a New Fine Structure in Solar Type IV Radio Bursts

1990 ◽  
Vol 142 ◽  
pp. 515-516
Author(s):  
G.P. Chernov
Keyword(s):  
Magnetic Field ◽  
Fine Structure ◽  
Plasma Waves ◽  
Radio Bursts ◽  
Two Dimensional ◽  
Coalescence Process ◽  
Magnetic Traps ◽  
Type Iv ◽  
Dipole Magnetic Field ◽  
Solar Type

A possible contribution of whistlers to fine structure production due to the coalescence process with plasma waves 1 + w → t at frequencies ω1 ± ωw = ωt is estimated. A whistler ray tracing in the solar corona with the twice Newkirk density model and with a dipole magnetic field using a standard numerical integration of the Haselgrove two-dimensional equations is performed.

scholarly journals Generation of strong magnetic fields from laser interaction with two-layer targets

2009 ◽  
Vol 27 (3) ◽  
pp. 471-474 ◽  
Author(s):  
S.Z. Wu ◽  
C.T. Zhou ◽  
X.T. He ◽  
S.-P. Zhu
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Laser Intensity ◽  
Intense Laser ◽  
Two Dimensional ◽  
Laser Interaction ◽  
Strong Magnetic Fields ◽  
Particle In Cell ◽  
Cell Simulation ◽  
The Magnetic Field

AbstractA two-layer target irradiated by an intense laser to generate strong interface magnetic field is proposed. The mechanism is analyzed through a simply physical model and investigated by two-dimensional particle-in-cell simulation. The effect of laser intensity on the resulting magnetic field strength is also studied. It is found that the magnetic field can reach up to several ten megagauss for laser intensity at 1019 Wcm−2.

scholarly journals Improvement of ion acceleration in radiation pressure acceleration regime by using an external strong magnetic field

2019 ◽  
Vol 37 (2) ◽  
pp. 217-222 ◽  
Author(s):  
H. Cheng ◽  
L. H. Cao ◽  
J. X. Gong ◽  
R. Xie ◽  
C. Y. Zheng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Laser Pulse ◽  
Radiation Pressure ◽  
Longitudinal Magnetic Field ◽  
Ponderomotive Force ◽  
Two Dimensional ◽  
Particle In Cell ◽  
Combined Action ◽  
The Magnetic Field

AbstractTwo-dimensional particle-in-cell (PIC) simulations have been used to investigate the interaction between a laser pulse and a foil exposed to an external strong longitudinal magnetic field. Compared with that in the absence of the external magnetic field, the divergence of proton with the magnetic field in radiation pressure acceleration (RPA) regimes has improved remarkably due to the restriction of the electron transverse expansion. During the RPA process, the foil develops into a typical bubble-like shape resulting from the combined action of transversal ponderomotive force and instabilities. However, the foil prefers to be in a cone-like shape by using the magnetic field. The dependence of proton divergence on the strength of magnetic field has been studied, and an optimal magnetic field of nearly 60 kT is achieved in these simulations.

scholarly journals Enhancement in the electromagnetic beam-plasma instability due to ion streaming

2011 ◽  
Vol 78 (2) ◽  
pp. 181-187 ◽  
Author(s):  
NITIN SHUKLA ◽  
A. STOCKEM ◽  
F. FIÚZA ◽  
L. O. SILVA
Keyword(s):  
Magnetic Field ◽  
Growth Rate ◽  
Dispersion Relation ◽  
Theoretical Analysis ◽  
Velocity Spread ◽  
Two Dimensional ◽  
Mass Ratio ◽  
Particle In Cell ◽  
Anisotropic Temperature ◽  
Beam Plasma Instability

AbstractWe investigate the Weibel instability in counter-propagating electron–ion plasmas with focus on the ion contribution, considering a realistic mass ratio. A generalized dispersion relation is derived from the relativistic theory by assuming an initially anisotropic temperature, which is represented by a waterbag distribution in momentum space, which shows an enhanced growth rate due to ion response. Two-dimensional particle-in-cell simulations support the theoretical analysis, showing a further amplification of magnetic field on ion time scale. The effect of an initial anisotropic temperature is investigated showing that the growth rate is monotonously decreased if the transverse spread is increased. Nevertheless, the presence of ions generates that the instability can develop for significantly higher electron temperatures. Suppression of oblique mode is also explored by introducing a parallel velocity spread.

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