Steady State Scavenging Rate for Charged Species

2 Steady State Scavenging Rate for Charged Species 

In order to understand the difference in the recombination yield at small ion pan-distances, the steady state scavenging rate constant for charged species was calculated by making the deterministic approximation [2] (i.e treat the Coulombic drift as a simple relative velocity), such that the Coulombic contribution to the relative drift is D Telr (with D being the mutual diffusion coefficient Ve the Onsager distance 

For times smaller than 7b, the distance between the ion pair at any given time (/) is given by the expression 

Substituting the above expression into Eq. (7.7) then gives the relative drift velocity of the approaching particle with a given diffusion coefficient D to be 

Steady state scavenging rate constant for ions The full time dependent scavenging rate constant for a constant Vc in the Laplace space is analytically known to be [3] 

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