From Minutes to Hours: Extending the T1 of Xe-129 DNP in the Solid-State
Caroline D. Keenan 1 , Mehrdad Pourfathi 1 , Nicholas N. Kuzma 1 , Stephen J. Kadlecek 1 , and Rahim Rizi 1
Radiology, University of Pennsylvania,
Philadelphia, Pennsylvania, United States
Recent advancements in the production of hyperpolarized
gases via solid-state DNP methods offer an attractive
alternative for in-vivo lung magnetic resonance imaging.
On evaluating the effect of the sample composition on
the Xe-129 DNP time constants we find that simple
reductions in the radical concentration leads to
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