Effect of Water Saturation on the Diffusion/Adsorption of ²²Na and Cesium onto the Callovo-Oxfordian Claystones

Figure 3

Evolution of the normalized activity in the upstream (a) and downstream (b) reservoirs of the four cells during the out-diffusion step for ²²Na. Decay corrections were applied with respect to the start of the through-diffusion stage. The simulated curves were calculated with the diffusive parameter values given in Table 2. The normalized activity was calculated by dividing the activity diffusing out of the sample by the total activity having diffusing in the sample during the through-diffusion experiment.

(a)

(b)