J. S. Waugh helped develop proton-enhanced solid-state nuclear magnetic resonance with Alexander Pines and M. G. Gibby. Their method transfers polarization from abundant proton spins to more dilute nuclear spins, making otherwise weak signals easier to observe.[ref]
Proton-enhanced NMR of dilute spins in solids by Alexander Pines and others. Polarization transfer and high-resolution detection
This cross-polarization (nuclear magnetic resonance) technique separates creating a strong spin signal from reducing spectral broadening during its detection.
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