Lifetime Distribution of Multi-Exponential Recovery Processes - Data

This data entry documents multi-exponential recovery signals and their recovery time constant distributions for test problems and physical systems, especially for magnetic resonance measurements. The test problems show (1) the accuracy of a new method by comparing a model recovery lifetime distribution and its inversion [Figure1.csv] as well as the parameters of its log-normal components [Figure2.csv]; (2) the comparison between the new method, an inversion recovery kernel, and signal normalization [Figure3.csv]; and (3) the assessment of the accuracy of the inversion at short measurement times [Figure4.csv]. The measurements and inversions are for NMR 1H T1 of mobile components in a skim milk powder by pseudo-2D 1H T1 - 1H chemical shift NMR spectroscopy with magic angle spinning at 400 MHz [Figure5_Data.csv, Figure5_Axes.csv, SMP.zip in Bruker format], surface NMR longitudinal recovery data of a site in Skive in Denmark (time domain data from https://doi.org/10.1016/j.jappgeo.2012.08.009) [Figure6.csv], dynamic nuclear polarization build up curves for 17O in CeO2 nanoparticles (time domain data from: https://doi.org/10.1039/C6CC10145C) [Figure7.csv and Figure8.csv], and decomposition of 14C in biochar (time domain data from: https://doi.org/10.1016/j.geoderma.2023.116761 and https://doi.org/10.1016/j.soilbio.2013.12.021) [Figure9.csv]. AcknowledgementsWe would like to thank Pernille Andersen for performing the skim milk powder NMR experiment.