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NMR imaging and spectroscopy for earth sciences: FY86 report

P. Harben,Robert W. Ward-1986-12-01-OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
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TL;DRAbstract

NMR Imaging has proven to be a unique and powerful tool in medicine for imaging many regions of the body. Very little of this technology has been applied to non-medical applications. Our objective was to develop an NMR Imaging capability at LLNL and to apply it to some general test samples and samples of a particular interest to Earth Science. A Sandia based solids spectrometer was modified to perform NMR Imaging. We built two sample probes and added features to enhance our imaging capabilities such as quadrature phase detection and spin-echo formation. We chose to confine our imaging effort to hydrogen nuclei in mobile water. Several test samples were imaged ranging from small water flasks to a peapod sections with good imaging results. Several NTS welded tuff samples were water saturated and imaging was attempted. Imaging failed on these samples. NMR spectroscopic analysis of the samples indicated two distinct wide water lines of 3 kHz and 13 kHz with no measurable free water. The wi

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NMR Imaging has proven to be a unique and powerful tool in medicine for imaging many regions of the body. Very little of this technology has been applied to non-medical applications. Our objective was to develop an NMR Imaging capability at LLNL and to apply it to some general test samples and samples of a particular interest to Earth Science. A Sandia based solids spectrometer was modified to perform NMR Imaging. We built two sample probes and added features to enhance our imaging capabilities such as quadrature phase detection and spin-echo formation. We chose to confine our imaging effort to hydrogen nuclei in mobile water. Several test samples were imaged ranging from small water flasks to a peapod sections with good imaging results. Several NTS welded tuff samples were water saturated and imaging was attempted. Imaging failed on these samples. NMR spectroscopic analysis of the samples indicated two distinct wide water lines of 3 kHz and 13 kHz with no measurable free water. The wi

Keywords

Materials scienceNuclear magnetic resonance spectroscopyAnalytical Chemistry (journal)SpectroscopySpectrometerNuclear magnetic resonanceChemistryOptics

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