Computer simulation of ion recombination in irradiated nonpolar liquids

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Abstract
The problem of the diffusion controlled recombination of ions for the case where initially two or more pairs of oppositely charged ions are found in each other’s Coulomb field, as occurs in the track of a high-energy electron in a nonpolar liquid, is treated by means of computer simulation. Results are presented on the probability of survival as a function of time for ion pairs in clusters containing up to four ion pairs initially. The effect of an external electric field on the probability of escape from recombination is investigated. The multipair results are compared with the calculations based on the single-pair theory. The consequences of the consideration of multipair effects in addition to the single ion-pair contribution in the nonhomogeneous kinetics of the track of high-energy electron in nonpolar liquids are discussed briefly.