Spin imaging in solids using synchronously rotating field gradients and samples
AssigneeInternational Business Machines Corporation
InventorsRobert A. Wind, Costantino S. Yannoni
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Abstract
A method for spin imaging in solids using nuclear magnetic resonance (NMR) spectroscopy. The invention includes the steps of rotating the sample about an axis which makes a particular angle with the NMR static external magnetic field, rotating a magnetic field gradient with a spatial distribution which is related to the sample spinning axis synchronously with the sample, collecting the data while performing a solid state NMR line narrowing step, and changing the phase relation between the sample rotation and the field gradient rotation on a step-by-step basis to map out an image of the object.
Claims6
A method of spin-imaging in solids using nuclear magnetic resonance in which a solid sample positioned within the field of an rf excitation coil and a static external magnetic field is rotated about an axis comprising the steps of:
- a. superimposing a specific magnetic field gradient on the static external magnetic field,
- b. rotating the magnetic field gradient synchronously with the sample,
- c. collecting data while performing solid state NMR line narrowing procedures, and
- d. changing the phase relation between the sample rotation and field gradient rotation on a step-by-step basis.
A method of spin-imaging in solids comprising the steps of:
- placing a solid sample within the field of an rf excitation coil and the static external magnetic field of an NMR spectrometer;
- superimposing a specific magnetic field gradient in one direction on the static external magnetic field to provide different resonant NMR frequencies in different parts of the sample;
- rotating the sample about an axis which makes a particular angle with the direction of the static external magnetic field;
- rotating the magnetic field gradient synchronously with the sample;
- collecting data while performing solid state NMR line narrowing procedures, and
- changing the phase relation between the sample rotation and field-gradient rotation on a step-by-step basis to map out an image of the object.
Dependencies are inferred from the claim text.