scholarly journals Anomalous electron diffusion across a magnetic field in a beam–plasma system

1988 ◽  
Vol 31 (6) ◽  
pp. 1818 ◽  
Author(s):  
H. Okuda ◽  
M. Ono ◽  
R. J. Armstrong
Keyword(s):  
Magnetic Field ◽  
Plasma System ◽  
Electron Diffusion ◽  
Beam Plasma

scholarly journals Two-stream instability for a light ion beam-plasma system with external magnetic field

1994 ◽  
Vol 12 (1) ◽  
pp. 13-16
Author(s):  
T. Okada ◽  
H. Tazawa
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Inertial Confinement Fusion ◽  
Ion Beam ◽  
Inertial Confinement ◽  
Plasma System ◽  
Pic Simulation ◽  
Particle In Cell ◽  
Beam Plasma ◽  
Confinement Fusion

For inertial confinement fusion (ICF), a focused light ion beam (LIB) is required to propagate stably through a chamber to a target. It is pointed out that the applied external magnetic field is important for LIB propagation. To investigate the influence of the external magnetic field on the LIB propagation, the electrostatic dispersion relation of the magnetized light ion beam-plasma system was analyzed. The particle in-cell (PIC) simulation results are presented for a light ion beam-plasma system with an external magnetic field.

Wave properties of an ion-beam system with a strong magnetic field

1990 ◽  
Vol 43 (3) ◽  
pp. 385-396 ◽  
Author(s):  
K. Naidu ◽  
G. P. Zank ◽  
J. F. McKenzie
Keyword(s):  
Magnetic Field ◽  
Refractive Index ◽  
Wave Propagation ◽  
Strong Magnetic Field ◽  
Plasma Frequency ◽  
Ion Beam ◽  
Temporal Stability ◽  
Acoustic Mode ◽  
Plasma System ◽  
Beam Plasma

This paper develops a theoretical framework for the description and classification of small-amplitude waves with frequencies much less than the ion gyrofrequency, propagating in an ion-beam plasma system. In this respect, the results extend to the strongly magnetized regime the results obtained previously by Zank and McKenzie and applied by Greaves et al. to study wave propagation in such a system for frequencies in excess of the ion gyrofrequency but less than the electron plasma frequency. For completeness, the full wave equation governing an ion-beam plasma system for any strength of applied magnetic field is derived. In specializing to the strong-magnetic-field limit, we find that the class of refractive-index topologies (which characterize the kinematic properties of wave propagation) is less rich than in the un-magnetized case. After investigating the topology of the refractive-index surface and the phase-, ray- and group-velocity surfaces, we construct a CMA diagram appropriate to the strongly magnetized ion-beam plasma system. The temporal stability and spatial amplification of the slow ion-acoustic mode for frequencies less than the stationary ion plasma frequency is investigated. We show that a strong magnetic field normal to the drift direction of the ion beam stabilizes long-wavelength modes that would be unstable in the unmagnetized case.

Effects of ambient plasma and background temperature on the beam–plasma instability and beam–plasma discharge at low pressures in bounded systems

1982 ◽  
Vol 27 (2) ◽  
pp. 363-376
Author(s):  
I. Roth ◽  
S. Cuperman
Keyword(s):  
Magnetic Field ◽  
Plasma Discharge ◽  
Finite Radius ◽  
Ionized Gas ◽  
Plasma System ◽  
Beam Plasma ◽  
Background Temperature ◽  
Beam Plasma Instability ◽  
Low Pressures ◽  
Electron Beam Plasma

The electrostatic instability of bounded beam –plasma systems as well as its consequences on the ignition of the beam –plasma discharge (BPD) at low pressures and magnetic field strengths are investigated. For this purpose, configurations consisting of a finite radius electron-beam –plasma system whose edge is far away from a confining coaxial metallic container are considered; an ambient, partially ionized gas filling the container is also present.

scholarly journals Sheath size and Child–Langmuir law in one dimensional bounded plasma system in the presence of an oblique magnetic field: PIC results

2021 ◽  
Vol 28 (8) ◽  
pp. 083501
Author(s):  
J. Moritz ◽  
S. Heuraux ◽  
E. Gravier ◽  
M. Lesur ◽  
F. Brochard ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Plasma System ◽  
One Dimensional ◽  
Bounded Plasma ◽  
Oblique Magnetic Field
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