Sentences with phrase «nuclear spin polarization»

The tiny thermal nuclear spin polarization represents a major obstacle towards this goal which may be overcome by dynamic nuclear spin polarization (DNP) methods.

Moreover, we show that using the integrated solid effect both for single - and double - quantum transitions nuclear spin polarization can be achieved even when the static magnetic field is not aligned along the NV's crystal axis.

The authors report the observation of a bulk nuclear spin polarization of six - percent, which is an NMR signal enhancement of approximately 170,000 times over thermal equilibrium.

The former is ideal for soft - tissue contrast, and the latter has extremely fine imaging resolution due to a revolution in the technology called dynamic nuclear spin polarization, which is used to track minute biochemistry in the body — such as the transition of the naturally occurring chemical pyruvate to lactate.

Not exact matches

NMR / MRI signals depend upon a majority of nuclear spins being polarized to point in one direction — the greater the polarization, the stronger the signal.

Resonant microwave radiation can then be used to transfer this polarization to surrounding nuclear spins.

This high levels of hyperpolarization, together with the long nuclear - spin polarization lifetimes in nanodiamonds and the relatively high density of 13C nuclei, turn functionalized and hyperpolarized nanodiamonds into attractive MRI probes for molecular imaging both in vitro and in vivo.