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US 6,674,283 B2Granted
Nuclear magnetic resonance imaging apparatus
AssigneeThe University of Chicago
InventorsRex E. Gerald, II, Robert J. Klingler, Jerome W. Rathke
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AssigneeThe University of Chicago
InventorsRex E. Gerald, II, Robert J. Klingler, Jerome W. Rathke
Estimating the term…
Imaging apparatus are used in a toroid cavity detector for nuclear magnetic resonance (NMR) analysis to hold samples relative to a principal detector element which is a flat metal conductor, the plane of which is parallel to the longitudinal axis of the toroid cavity. A sample is held adjacent to or in contact with the principal detector element so that the sample can be subjected to NMR analysis when a static main homogeneous magnetic field (B0) produced by a NMR magnetic device is applied to the toroid cavity and an RF excitation signal pulse is supplied from a potentiostat to the principal detector element so that an alternately energized and de-energized magnetic field (B1) is produced in the sample and through the toroid cavity. The sample may be components of a coin cell battery which are mounted within the toroid cavity relative to the principal detector element by an non-conductive coin cell battery imager or a press assembly so that the components are hermetically sealed together and so that a direct current potential can be applied to the components. Alternately, a sample is positioned within an O-ring maintained relative to the principal detector element by a pair of glass plates that are disposed on opposite sides of the principal detector element and are compressed toward each other so that NMR analysis can be used to analyze light transmitted through the sample or to analyze a sample separated from the principal detector element by semi-permeable membranes.
A sample holder for use in a toroid cavity detector for in-situ analysis of a sample through the use of nuclear magnetic resonance, said detector including a housing which forms a toroid cavity with a longitudinal axis and to which is adapted to be applied an externally applied magnetic field, and including a pulse generator for supplying a pulsed signal to an electrical conductor extending into said toroid cavity and thereby to a principal detector element such that a magnetic field being at least partially oriented perpendicular to said externally applied magnetic field and internal to said toroid cavity is developed when said pulsed signal is supplied to said electrical conductor and said principal detector element, said sample holder comprising:
A coin cell battery imager for use in a toroid cavity detector for in-situ analysis of components of a coin cell battery through the use of nuclear magnetic resonance, said detector including a housing which forms a toroid cavity with a longitudinal axis and to which is adapted to be applied an externally applied magnetic field, and including a pulse generator for supplying a pulsed signal to an electrical conductor extending into said toroid cavity and thereby to a principal detector element such that a magnetic field being at least partially oriented perpendicular to said externally applied magnetic field and internal to said toroid cavity is developed when said pulsed signal is supplied to said electrical conductor and said principal detector element, said coin cell battery imager comprising:
A coin cell battery imager for use in a toroid cavity detector for in-situ analysis of components of a coin cell battery through the use of nuclear magnetic resonance, said detector including a housing which forms a toroid cavity with a longitudinal axis and to which is adapted to be applied an externally applied magnetic field, and including a pulse generator for supplying a pulsed signal to an electrical conductor extending into said toroid cavity and thereby to a principal detector element such that a magnetic field being at least partially oriented perpendicular to said externally applied magnetic field and internal to said toroid cavity is developed when said pulsed signal is supplied to said electrical conductor and said principal detector element, said coin cell battery imager comprising:
A sample holder for use in a toroid cavity detector for in-situ analysis of a sample through the use of nuclear magnetic resonance, said detector including a housing which forms a toroid cavity with a longitudinal axis and to which is adapted to be applied an externally applied magnetic field, and including a pulse generator for supplying a pulsed signal to an electrical conductor extending into said toroid cavity and thereby to a principal detector element such that a magnetic field being at least partially oriented perpendicular to said externally applied magnetic field and internal to said toroid cavity is developed when said pulsed signal is supplied to said electrical conductor and said principal detector element, said sample holder comprising:
Dependencies are inferred from the claim text.