Application of Gauss's law space-charge limited emission model in iterative particle tracking method

Application of Gauss's law space-charge limited emission model in iterative particle tracking method

The particle tracking method with a so-called gun iteration for modeling the space charge is discussed in the following paper. We suggest to apply the emission model based on the Gauss's law for the calculation of the space charge limited current density distribution using considered method. Ba...

Full description

Saved in:
Bibliographic Details
Published in:Journal of computational physics Vol. 324; pp. 62 - 72
Main Authors: Altsybeyev, V.V., Ponomarev, V.A.
Format: Journal Article
Language:English
Published: United States Elsevier Inc 01-11-2016
Subjects:
ACCURACY
ALGORITHMS
ANALYTICAL SOLUTION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CURRENT DENSITY
Curved emitting surface
CYLINDRICAL CONFIGURATION
DISTRIBUTION
EFFICIENCY
ELECTRONS
EMISSION
Gauss's law emission
ITERATIVE METHODS
MATHEMATICAL METHODS AND COMPUTING
Particle tracking method
Particle-in-cell method
PARTICLES
SPACE CHARGE
Space-charge limited emission
SURFACES
Space-charge limited emission
Particle tracking method
Particle-in-cell method
Curved emitting surface
Gauss's law emission
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The particle tracking method with a so-called gun iteration for modeling the space charge is discussed in the following paper. We suggest to apply the emission model based on the Gauss's law for the calculation of the space charge limited current density distribution using considered method. Based on the presented emission model we have developed a numerical algorithm for this calculations. This approach allows us to perform accurate and low time consumpting numerical simulations for different vacuum sources with the curved emitting surfaces and also in the presence of additional physical effects such as bipolar flows and backscattered electrons. The results of the simulations of the cylindrical diode and diode with elliptical emitter with the use of axysimmetric coordinates are presented. The high efficiency and accuracy of the suggested approach are confirmed by the obtained results and comparisons with the analytical solutions.
ISSN:0021-9991
1090-2716
DOI:10.1016/j.jcp.2016.08.007