Comparison of the results of Monte Carlo simulations with experimental data for electron swarms in N-2 from moderate to very high electric field to gas density ratios (E/N)

摘要

A code for Monte Carlo simulation (MCS) of electron motion adjusted to include boundary and non-equilibrium effects is developed, tested and applied to model low-pressure, low-current, moderate to very high E/N experiments in nitrogen. It has the flexibility to include effects of anisotropy, non-conservative collisions, steady-state Townsend (SST) conditions and electron reflection and bactcscattering at the anode. The results of the simulation are compared with available experimental data such as spatial distribution of emission of first negative band in nitrogen, ionization coefficients and charge multiplication. Good agreement exists between the results of simulations and the experimental data indicating that the basic understanding of non-equilibrium development is available, while some differences point to the need to adjust the corresponding cross sections or models of scattering. [References: 98]