An Analytical Expression for the Electric Field and Particle Tracing in Modelling of Be Erosion Experiments at the JET ITER-like Wall

2016 ◽  
Vol 56 (6-8) ◽  
pp. 640-645 ◽  
Author(s):  
I. Borodkina ◽  
D. Borodin ◽  
A. Kirschner ◽  
I.V. Tsvetkov ◽  
V.A. Kurnaev ◽  
...  
Keyword(s):  
Electric Field ◽  
Particle Tracing ◽  
Analytical Expression

Average Dielectric Constant of Coated Spheres: Application to the IR Absorption Spectra of NiO and MgO

1993 ◽  
Vol 47 (8) ◽  
pp. 1203-1208 ◽  
Author(s):  
C. Pecharroman ◽  
T. Gonzalez Carreno ◽  
J. E. Iglesias
Keyword(s):  
Dielectric Constant ◽  
Electric Field ◽  
Boundary Value Problem ◽  
Spray Pyrolysis ◽  
Absorption Spectra ◽  
Boundary Value ◽  
Ir Absorption ◽  
Analytical Expression ◽  
Ir Absorption Spectra ◽  
Coated Spheres

An analytical expression has been obtained for the average dielectric constant of a sample consisting of small coated spheres interspersed in a matrix, by solving the static boundary value problem and averaging the values of the electric field and polarization over the whole of the sample. Absorption IR data of MgO and NiO samples of this kind, produced by spray pyrolysis, embedded in a KBr matrix, are presented, and the theory developed is employed to fit the observed spectra.

scholarly journals Multiple discrete-energy ion features in the inner magnetosphere: 9 February 1998, event

2004 ◽  
Vol 22 (4) ◽  
pp. 1297-1304 ◽  
Author(s):  
Y. Ebihara ◽  
M. Ejiri ◽  
H. Nilsson ◽  
I. Sandahl ◽  
M. Grande ◽  
...  
Keyword(s):  
Distribution Function ◽  
Electric Field ◽  
Realistic Model ◽  
Particle Simulation ◽  
Discrete Energy ◽  
Particle Tracing ◽  
Inner Magnetosphere ◽  
Convection Electric Field ◽  
Dipole Magnetic Field ◽  
Polar Satellite

Abstract. Multiple discrete-energy ion bands observed by the Polar satellite in the inner magnetosphere on 9 February 1998 were investigated by means of particle simulation with a realistic model of the convection electric field. The multiple bands appeared in the energy vs. L spectrum in the 1–100 keV range when Polar traveled in the heart of the ring current along the outbound and inbound paths. We performed particle tracing, and simulated the energy vs. L spectra of proton fluxes under the dipole magnetic field, the corotation electric field, and the realistic convection electric field model with its parameters depending on the solar wind data. Simulated spectra are shown to agree well with the observed ones. A better agreement is achieved when we rotate the convection electric potential eastward by 2h inMLT and we change the distribution function in time in the near-Earth magnetotail. It is concluded that the multiple bands are likely produced by two processes for this particular event, that is, changes in the convection electric field (for >3keV protons) and changes in the distribution function in the near-Earth magnetotail (for <3keV protons). Key words. Magnetospheric physics (energetic particles, trapped; electric field) – Space plasma physics (numerical simulation studies)

scholarly journals Электрическая площадь поля в вакууме с движущимися зарядами

2020 ◽  
Vol 46 (4) ◽  
pp. 15
Author(s):  
Н.Н. Розанов
Keyword(s):  
Spatial Distribution ◽  
Electric Field ◽  
Electromagnetic Radiation ◽  
Charged Particles ◽  
Constant Acceleration ◽  
Analytical Expression ◽  
Exact Analytical Expression ◽  
Approximate Form ◽  
Field Area

An exact analytical expression is presented for the electric field area generated by the motion of charged particles with constant acceleration. An approximate form of the spatial distribution of the electric area in the vicinity of the point of instantaneous stopping of charges is given. The possibility of generating quasi-unipolar pulses of electromagnetic radiation with a significant electric area is shown.

scholarly journals Plasma magnetosphere of slowly rotating magnetized neutron star in branewold

2019 ◽  
Vol 49 ◽  
pp. 1960019 ◽  
Author(s):  
Rayimbaev Javlon ◽  
Turimov Bobur ◽  
Palvanov Satimbay
Keyword(s):  
Neutron Star ◽  
Electric Field ◽  
Charge Density ◽  
Poisson Equation ◽  
Maxwell Equations ◽  
Scalar Potential ◽  
Parallel Electric Field ◽  
Polar Cap ◽  
Analytical Expression ◽  
Analytical Expressions

The analytical expression for Goldreich-Julian (GJ) charge density at the polar cap of magnetized neutron star has been obtained in braneworlds for inclined neutron star through solving Maxwell equations and shown that the value of GJ charge density decreases with increasing the value of the brane charge. The analytical expressions for scalar potential and parallel electric field on the region greater than the polar cap region of the neutron star have also been obtained by solving Poisson equation in braneworlds.

Analytical expression for electric field between two facing strip electrodes in microchannel

2006 ◽  
Vol 42 (3) ◽  
pp. 145 ◽  
Author(s):  
P. Linderholm ◽  
U. Seger ◽  
P. Renaud
Keyword(s):  
Electric Field ◽  
Analytical Expression

An analytical expression for the electric field in MSM structures

1993 ◽  
Vol 14 (7) ◽  
pp. 1485-1493 ◽  
Author(s):  
Dejan M. Gvozdić ◽  
Jovan B. Radunovic ◽  
J. M. Elazar
Keyword(s):  
Electric Field ◽  
Analytical Expression

scholarly journals An approximate expression for the calculation of the electric field in vicinity of the cube electrode with rounded wedges

2008 ◽  
Vol 21 (1) ◽  
pp. 73-81
Author(s):  
Branko Kolundzija ◽  
Alenka Milovanovic
Keyword(s):  
Numerical Methods ◽  
Electric Field ◽  
Approximate Expression ◽  
Numerical Results ◽  
Approximate Analytical Expression ◽  
Analytical Expression

In this paper, an approximate analytical expression for calculation electric field in the centre of the rounded vertex of the metallic cube will be proposed. This expression is determined according to the numerical results obtained using different numerical methods. .

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