Figure 8.

Fit parameters for spin-diffusion barrier model. (a) Enhancement at infinite time from the four buildup curves shown in Figure 4, and also for buildup with no microwave power. (b) Values calculated for $k_{\mathrm{DNP}}^{\mathrm{eff}}$ from experiment. (c) Values calculated for $P_{S,\mathrm{eq}}^{\mathrm{eff}}$ (solid line) from experiment and $P_{S,\mathrm{eq}}^{*}$ (dashed line) from Bloch equations.