= Alexander Pines
{c}
{wiki}
<Alexander Pines> coauthored a method enhancing <nuclear magnetic resonance> signals from dilute <nuclear spins> in solids. Repeated transfer of polarization from abundant spins, usually <protons>, strengthens the rarer species' signal. Decoupling the abundant spins during observation then improves spectral resolution. The technique separates the problem of building a detectable <spin polarization> from the problem of measuring a narrow resonance, making otherwise weak solid-state spectra accessible.<Proton-enhanced NMR of dilute spins in solids by Alexander Pines and others>[Journal of Chemical Physics 59, 569–590 (1973), abstract]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Pines_Portrait_2007_(cropped).JPG?width=260]
{title=Portrait of <Alexander Pines> in 2007}
{description=Via Wikimedia Commons; the linked file page provides image credits and usage information.}
{source=https://commons.wikimedia.org/wiki/File:Pines_Portrait_2007_(cropped).JPG}
{width=260}
Back to article page
