Year: 2020
Type: article
Abstract: Particle simulations of bounded plasmas require assumptions on the distribution function of the incoming particles at the plasma–surface interface. Two independent distributions are usually defined, one angular and one energy dependent, disregarding the unified distribution as a whole. In this paper, two types of angular distribution (isotropic and cosine-type) and three types of energy distribution (energy dependent, uniform, and mono-energetic) are compared in a correlated manner via the resulting velocity distribution functions. Examples of incorrectly defined angular distributions are included. Numerical algorithms are indicated for the generation of the discussed distributions. Calculations of the incoming average velocity of the particles, directed perpendicularly to the surface, show the effect of each distribution on subsequent calculations.
Source: AIP Advances
DOI: 10.1063/5.0030781
Author: C. Costin
Institution: Alexandru Ioan Cuza University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,350
Award: G5541391416
OpenAlex ID: W3094942119