Gyromagnetic resonance method and apparatus

Claim 1

GYROMAGNETIC RESONCE APPARATUS INCLUDING; MEANS FORMING A PROBE HAVING A CAVITY THEREIN FOR CONTAINING FOR SAMPLE ENSEMBLE OF GYROMAGNETIC BODIES AND FOR IMMERSING THE SAMPLE ENSEMBLE IN A POLARIZING MAGNET FIELD; SAID PROBE MEANS INCLUDING A PLURALITY OF STRUCTURAL ELEMENTS FOR EXCITING AND DETECTING GYROMAGNETIC RESONANCE OF THE GYROMAGNETIC BODIES CONTAINED WITHIN SAID PROBE MEANS, THERE BEING A REGION OF SPACE WITHIN SAID PROBE MEANS OCCUPIED BY FIRST, SECOND AND THIRD MATERIALS OF DISSIMILAR MAGNETIC SUSCEPTIBILITY, SAID SECOND AND THIRD MATERIALS FORMING S STRUCTURAL PORTIONS OF SAID PROBE MEANS, AND SAID SECOND AND THIRD MATERIALS OF SAID TWO MATERIAL PROBE STRUCTURAL PORTIONS BEING MADE UP OF A PROPERLY PORTIONED AMOUNT OF PARAMAGNETIC AND DIAMAGNETIC MATERIAL TO MATCH THE MAGNETIC SUSCEPTIBILITY OF SAID TWO MATERIAL STRUCTURAL PORTION TO THE MAGNETIC SUSCEPTIBILITY OF SAID FIRST MATERIAL WHEREBY SAID THREE MATERIAL COMPOSITE PROBE REGION OF SPACE IS CAUSED TO HAVE A SUBSTANTIALLY UNIFORM MAGNETIC SUSCEPTIBILITY AS SEEN FROM THE SAMPLE ENSEMBLE OF GYROMAGNETIC BODIES DISPOSED WITHIN THE PROBE CAVITY TO PREVENT UNDESIRED MAGNETIC FIELD GRADIENTS WITHIN THE SAMPLE.