Figure 3
Hydrogen concentration as a function of time for one irradiation run and one cuvette. The black trace shows the measured data, the fit to a 1-dimensional diffusion model33,49 is shown in blue, the green dotted line shows the extrapolation of the background signal of hydrogen concentration from previous irradiations within the run. As the distance to the irradiated region and the start time are independently determined, there are two free parameters in the model: the diffusion coefficient, which determines the overall model shape, and the model parameter related to the radiolytic yield, which acts as an overall scaling factor. The results from these fits are reported in Table 1. Figure made with plot plotted with matplotlib55.
