scholarly journals Relativistic particle beam in a semi-infinite, axially symmetric conducting channel extending from a perfectly conducting plane

1976 ◽  
Author(s):  
V.K. Neil ◽  
R.K. Cooper
Keyword(s):  
Relativistic Particle ◽  
Particle Beam ◽  
Axially Symmetric ◽  
Conducting Plane ◽  
Conducting Channel

scholarly journals Vortex Accretion Funnel / Relativistic Beam Models of Double Radio Sourci

1982 ◽  
Vol 97 ◽  
pp. 237-238
Author(s):  
H. A. Scott ◽  
R. V. E. Lovelace
Keyword(s):  
Angular Momentum ◽  
Relativistic Particle ◽  
Particle Beam ◽  
Power Source ◽  
Radio Sources ◽  
Relativistic Beam ◽  
Consistent Model ◽  
Self Consistent

A consistent model of extra-galactic double radio sources must evidently involve all aspects of the source from the underlying power source to the production of the radio lobes. Here, we give an overview of our work on the different aspects of a self-consistent model which includes gravitational accretion of fluid with angular momentum as the power source, the production of hydrodynamic or relativistic particle-beam jets, and the formation of expanding radio components.

scholarly journals The Axially Symmetric Wind Magnetosphere

1981 ◽  
Vol 95 ◽  
pp. 25-26
Author(s):  
R. Schmalz ◽  
C. Herold ◽  
H. Herold ◽  
H. Ruder
Keyword(s):  
Neutron Star ◽  
Dimensionless Parameter ◽  
Relativistic Particle ◽  
Short Circuit ◽  
Equations Of Motion ◽  
Mhd Equations ◽  
Axially Symmetric ◽  
Consistent Solution ◽  
Image Position ◽  
Stream Lines

A central question in magnetospheric theory of pulsars is: how does a rapidly rotating magnetized neutron star manage to short-circuit its huge unipolar induction voltage? This problem is best studied in an idealized geometry like the parallel rotator. The theory must at least include basic plasma physics with relativistic particle inertia. Even the simplest model will require a global self-consistent solution of both Maxwell's equations and relativistic MHD-equations of motion. Assuming time independence, axial symmetry and charge separation, we reduce this problem to three coupled, quasilinear second order partial differential equations for three dimensionless scalar quantities Φ, f and Γ (see Schmalz et al., 1980): Here x and z are cylindrical coordinates measured in units of the light cylinder radius. Φ is the stream function which is constant on stream lines, f = x · vφ/C is connected with the angular momentum (vφ = toroidal velocity), and Γ = 2∊γ = 2∊/(1 - v2/c2)1/2 where ∊ = mc2/(eBoa2ω) is a dimensionless parameter. Taking electrons (mass m, charge e) and typical neutron star parameters (radius a = 10 km, angular velocity ω = 30/s, polar field strength Bo = 108 T), we have ∊ ≈ −10−12.

scholarly journals Calculation algorithm of the trajectories of electrons in electrostatic and magnetostatic fields of electron-optical systems

2020 ◽  
Vol 55 (4) ◽  
pp. 435-444
Author(s):  
A. M. Krot ◽  
O. N. Petrovich ◽  
I. S. Rusetski
Keyword(s):  
Decomposition Method ◽  
Particle Beam ◽  
Optical Systems ◽  
Computational Domain ◽  
Axially Symmetric ◽  
Calculation Algorithm ◽  
Charged Particle Beam ◽  
Structured Grids ◽  
Field Simulation ◽  
Solution Of Equations

An algorithm for numerical calculation of the trajectories of electrons emitted by plasma in the electron beam moving in axially symmetric electrostatic and magnetostatic fields is proposed. This algorithm is based on the technology of charged particle beam discretization by current tubes and the decomposition method of the computational domain. Field simulation and numerical solution of equations for particle motion are carried out with the use of quasi-structured grids.

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