No abstract

The rotational excitation and transfer of low-energy electrons cross-sections in carbon dioxide have been obtained to compare in the theoretical & experimental values of the kinetic and diffusion coefficient. the transport coefficients theoretical values of were gained by calculating the delicate electron energy distribution functions using a putative elastic and inelastic cross-sections combination. The values for movement, drift speed, average electron energy, and power noticeable with experimental data were compared. Alteration were made to the default cross sections until obtaining good agreement. Transport coefficients were calculated for values between (6 × 10−17 - 6×10−15 )V cm2 with energy zoning 0.035 eV at 300k° temperature.

Electron Swarm Parameters in plasma gas mixtures of Co2 have been calculated. Studies focused on four gas mixtures with Co2, He, and N2 in the ratio 5%: 55%: 40%, 2.5%: 45%: 52.5%, 10%: 50%: 40% and 40%: 40%: 20% respectively. Calculations of the electron energy distribution function f (ε), drift velocity Vd, mobility μ, electron diffusion D, D/μ, electron average energy <ε> and electric field E in the range of electric field to gas number density ratio E/N from 1×10−19 to 5×10−15 at 300 0K were reported in this work. The theoretical calculations shown helium has a good effect on the electrons transition parameters of Co2 laser. Furthermore, at low energy, the total collision rate is increasing slowly for higher electron energy.

From the Maxwell speed distribution can be calculated several characteristic molecular speeds, namely, the most probable speed ν p , the mean speed <ν>, and the root-mean-square speed ν rms , furthermore satisfy the condition of speed for percentage different gaseous mixtures at 300 0 K.The obtained results have been drawn as functions for its variables and appeared in good agreement with the literature.