Electron energy distribution function examples for various model situations

Electron energy distribution function example

Electron energy distribution function example

Electron energy distribution function example

Scientific software description


The package is intended for quick calculation of the electron energy distribution function and correspondent collisional rate coefficients in the gas-discharge or electron beam formed plasma under arbitrary non-stationary conditions. Calculations are based on the Boltzmann equation. Original, effective and quick numerical methods are developed.

A physical model takes into account the following processes: heating of electrons by electric field, high-voltage beam heating of electrons and creation of the secondary electrons, electron-electron collisions, elastic, inelastic  and superelastic electron-atomic collisions, recombination, attachment and a number of other processes. Each of them may be turned on/off  by means of a start menu.

Arbitrary set of active particle types may be taken into consideration. The distribution function may be calculated in accordance with the kinetics of population densities, determined  basing on the real rate coefficients.

The package may be used for the electron distribution function and electron transport coefficients analysis in any physical situation - independently, or as a subroutine for other plasma simulation program (see NIKIN-B package description). The package provides useful graphical representation of the distribution function time evolution.

 Scientific software discription


The package is intended for a quick calculation of the electron energy distribution function, formed as a result of energy degradation process, initiated by electron beam or other high-speed particle beam propagation  through a gas mixture.

The energy distribution function is derived from so called "Degradation Equation".  A new effective and reliable numerical method is developed to solve this equation.  PC run time in case of electron degradation in argon is about 1 sec only for IBM PC /486, with exact particle number and total energy conservation.

The program may be used for determination and investigation of any beam formed plasma characteristics - independently, or as a subroutine.

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