Magnetic resonance apparatus
First Claim
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1. Nuclear magnetic resonance equipment comprising:
- means for producing a toroidal region of homgeneous radial magnetic field;
transmitting means for transmitting a radio frequency pulse into said toroidal region of homogeneous radial magnetic field to excite nuclei therein, andreceiving means for receiving nuclear magnetic resonance signals from said nuclei in said toroidal region of homogeneous radial magnetic field.
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Abstract
Means for producing a region of homogeneous magnetic field remote from the source of the field, wherein two equal field sources are arranged axially so their fields oppose, producing a region near the plane perpendicular to the axis midway between the sources where the radial component of the field goes through a maximum. Near the maximum, the field is homogeneous over prescribed regions.
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Citations
13 Claims
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1. Nuclear magnetic resonance equipment comprising:
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means for producing a toroidal region of homgeneous radial magnetic field; transmitting means for transmitting a radio frequency pulse into said toroidal region of homogeneous radial magnetic field to excite nuclei therein, and receiving means for receiving nuclear magnetic resonance signals from said nuclei in said toroidal region of homogeneous radial magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Nuclear magnetic resonance well logging equipment comprising:
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means for producing a toroidal region of homogeneous radial magnetic field surrounding a well bore; and
,antenna means for launching a radio frequency field into said toroidal region of homogeneous radial magnetic field, and receiving a nuclear magnetic resonant signal from nuclei therein. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification