Magnet arrangement for producing a field suitable for nmr in a concave region

A kit for performing measurements using NMR techniques comprising:

• a primary magnet having a distal surface;
• a proximal surface opposite the distal surface,
• a first lateral surface abutting the proximal and distal surfaces;
• a second lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the first lateral surface;
• a third lateral surface abutting the proximal and distal surfaces and substantially orthogonal to the first and second lateral surfaces;
• and
• a fourth lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the third lateral surface;
• the distal, proximal, first, second, third, and fourth surfaces conjoining to enclose an interior portion of the primary magnet;
• wherein the proximal surface of the primary magnet is, on average, angled at an acute angle relative to the distal surface of the magnet, such that a height dimension of the fourth surface of the magnet is greater than a height dimension of the third surface of the primary magnet;
• a secondary magnet having a distal surface;
• a proximal surface opposite the distal surface,
• a first lateral surface abutting the proximal and distal surfaces;
• a second lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the first lateral surface;
• a third lateral surface abutting the proximal and distal surfaces and substantially orthogonal to the first and second lateral surfaces;
• and
• a fourth lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the third lateral surface;
• the distal, proximal, first, second, third, and fourth surfaces conjoining to enclose an interior portion of the secondary magnet.

A magnet system for use in a nuclear magnetic resonance (“NMR”) apparatus, the system comprising:

• a first magnet;
• a second magnet;
• a third magnet
• the first magnet having:
• a distal surface;
• a proximal surface opposite the distal surface, a first lateral surface abutting the proximal and distal surfaces;
• a second lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the first lateral surface;
• a third lateral surface abutting the proximal and distal surfaces and substantially orthogonal to the first and second lateral surfaces;
• and
• a fourth lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the third lateral surface;
• the distal, proximal, first, second, third, and fourth surfaces conjoining to
• enclose an interior portion of the first magnet;
• the second magnet, having
• a distal surface,
• a proximal surface opposite the distal surface,
• a first lateral surface abutting the proximal and distal surfaces,
• a second lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the first lateral surface,
• a third lateral surface abutting the proximal and distal surfaces and substantially orthogonal to the first and second lateral surfaces, and
• a fourth lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the third lateral surface;
• the distal, proximal, first, second, third, and fourth surfaces conjoining to enclose an interior portion of the second magnet;
• and
• the third magnet having
• a rectangular distal surface;
• a proximal surface opposite the distal surface,
• a first lateral surface abutting the proximal and distal surfaces;
• a second lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the first lateral surface;
• a third lateral surface abutting the proximal and distal surfaces and substantially orthogonal to the first and second lateral surfaces;
• and
• a fourth lateral surface abutting the proximal and distal surfaces and opposite and substantially parallel to the third lateral surface;
• the distal, proximal, first, second, third, and fourth surfaces conjoining to enclose an interior portion of the first magnet;
• wherein the first magnet is located at a first position and the second magnet is located at a second position such that the third lateral surface of the first magnet is proximal and parallel to the third lateral surface of the second magnet, forming a first gap therebetween;
• the proximal surface of the first magnet is angled, on average, at an acute angle relative to the distal surface of the first magnet, such that a height dimension of the fourth surface of the first magnet is greater than a height dimension of the third surface of the first magnet;
• and
• the proximal surface of the second magnet is angled, on average, at an acute angle relative to the distal surface of the second magnet, such that a height dimension of the fourth surface of the second magnet is greater than a height dimension of the third surface of the second magnet;
• and
• the third magnet is located in the first gap.