Abstract
The diffusion of 241Am 3+ ions in a sulphonic acid polystyrene type ion-exchange membrane has been studied. Ion diffusion-concentration profiles within the membrane is determined using quantitative microautoradiography performed with Agfa-Gevaert photoemulsions and plastic nuclear track detectors. The diffusion coefficients derived from the radiograms of the ion-concentration profiles and the results obtained by the two different methods are compared.
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