Plasma Shielding Effects on Ionic Recombination

Monte Carlo calculations are presented of the ion-ion recombination rate coefficient for the ${\mathrm{Kr}}^{+}$ + ${\mathrm{F}}^{-}$ + Ar reaction. The effect of other ions on the recombination rate is taken into account by use of the Debye screened potential rather than the Coulomb potential. This potential should be valid for ion densities between ${10}^{13}$ and ${10}^{15}$ ${\mathrm{cm}}^{-3\mathrm{}}$. Results are presented for ion densities in this range and for neutral pressures of 0.5 to 8.0 atm. It is found that screening effects significantly decrease the ion-ion recombination rate.