On the inversion of diffusion NMR data: Tikhonov regularization and optimal choice of the regularization parameter

► The inversion of diffusion NMR data has been performed using Tikhonov regularization. ► Automatic, optimal choice of the regularization parameter is demonstrated for the L-curve and GCV methods. ► The technique is computationally straightforward using standard matrix algebra. ► The approach is demonstrated using sunset yellow and poly(styrene 4-sulphonate).