Enhancement of solution NMR and MRI with laser-polarized xenon
Creators
- 1. Univ. of California, Berkeley, CA (United States)
Description
Optical pumping with laser light can be used to polarize the nuclear spins of gaseous xenon-129. When hyperpolarized xenon-129 is dissolved in liquids, a time-dependent departure of the proton spin polarization from its thermal equilibrium is observed. The variation of the magnetization is an unexpected manifestation of the nuclear Overhauser effect, a consequence of cross-relaxation between the spins of solution protons and dissolved xenon-129. Time-resolved magnetic resonance images of both nuclei in solution show that the proton magnetization is selectively perturbed in regions containing spin-polarized xenon-129. This effect could find use in nuclear magnetic resonance spectroscopy of surfaces and proteins and in magnetic resonance imaging. 33 refs., 5 figs
Additional details
Publishing Information
- Journal Title
- Science (Washington, D.C.)
- Journal Volume
- 271
- Journal Issue
- 5257
- Journal Page Range
- p. 1848-1851.
- ISSN
- 0036-8075
- CODEN
- SCIEAS
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28003853
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- NUCLEAR MAGNETIC RESONANCE; OPTICAL PUMPING; POLARIZATION; SPECTROSCOPY; XENON 129
- Descriptors DEC
- DAYS LIVING RADIOISOTOPES; EVEN-ODD NUCLEI; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MAGNETIC RESONANCE; NUCLEI; RADIOISOTOPES; RESONANCE; STABLE ISOTOPES; XENON ISOTOPES