Patent ID: 7053621
Filing Date: 2006-05-30
Classification: G01R

Abstract:
1. A superconducting magnet device configured for an NMR spectrometer, which comprises: a split type superconducting magnet comprising left solenoid superconducting magnets and right solenoid superconducting magnets, the split type superconducting magnet having a center space around a vertical center axis between the left solenoid superconducting magnets and the right solenoid superconducting magnets; a sample tube placed in the center space in order to enable placement of the sample therein which is energized by the magnetic field generated by the split type superconducting magnet; and a solenoid coil configured for detecting signals due to magnetic resonance from the energized sample, the solenoid coil being wound around the sample tube; wherein the left solenoid superconducting magnets and the right solenoid superconducting magnets are arranged mirror-symmetrically with respect to a center face along the vertical center axis and thereby generate a magnetic field of a frequency of at least 400 MHZ in a horizontal center axis perpendicular to the vertical center axis; wherein the left solenoid superconducting magnets and the right solenoid superconducting magnets are constituted respectively by a separate plurality of outermost magnets and a separate plurality of innermost magnets; wherein the plurality of innermost magnets are sandwiched between the plurality of outermost magnets; wherein the plurality of innermost magnets are constituted by a plurality of split type solenoid coils and are arranged mirror-symmetrically with respect to the center face thereof; wherein the left solenoid superconducting magnets and the right solenoid superconducting magnets are arranged symmetrically with respect to the horizontal center axis intersecting the vertical center axis; wherein the left solenoid superconducting magnets and the right solenoid superconducting magnets are arranged in concentric relation with respect to the horizontal center axis; wherein a direction of current in at least one of the plurality of innermost magnets is minus when a direction of main current in at least one of the plurality of outermost magnets configured for energizing the sample is plus; and wherein an intensity of the magnetic field in the center space where the sample is placed is at least 11 T.