Effective magnetic field parameter ratio

Reactions which have occurred at zero time are replaced by their reactive products (if applicable). For all surviving species reactions times are generated from a model distribution conditioned on the radical pair separation distance. The fluorescence intensity I (t) (which is the experimentally observable quantity) is detected as D D [reaction (10)] and D [reaction (7)] to allow better statistics to be obtained. The simulation is therefore run twice, one with zero field parameters and one using high field parameters the ratio of I sit)/hit) is then obtained to observe the magnetic field effect. In the simulation, no T or relaxation mechanism was assumed to take place at high fields (unless otherwise stated). For zero field calculations Tq was assumed to be equal to T2 with the spin-spin relaxation time set to a value of 30 and 9 ns for S+ and D+ respectively. These values are based on the analysis by Borovkov on the rate of electron self-exchange [34, 41, 42] for S+ and D+, with... 

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