RF receiver coil configuration for an NMR spectrometer

Details RF receiver coil configuration for an NMR spectrometer RF receiver coil configuration for an NMR spectrometer

1996-03-15

1997-11-18

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324321, G01V 300

Patent

active

056891873

ABSTRACT:
An RF receiver coil configuration for NMR spectrometers has at least two largely mutually orthogonal RF receiver coil systems of which at least one is made from superconducting material and is at least partially cooled to a cryogenic temperature lying far below room temperature, with each RF receiver coil system comprising at least one single coil arranged symmetrically about a sample the RF receiver coil systems having differing radial separations from the sample. The inner RF receiver coil system is made from a material having differing physical characteristics in dependence on the actual operating temperature than the material of the outer RF receiver coil system, with the materials and the geometries of the RF receiver coil systems being chosen to minimize the influence of the susceptibility of the RF receiver coil system on the homogeneity of the magnetic field in the vicinity of the sample. In this fashion, the high Q values of the resonator configuration achieved by the use of superconducting material with high electrical RF conductivity can be taken advantage of while, at the same time, avoiding the substantial interfering influences of the high susceptibility of the superconducting material.

REFERENCES:
patent: 4549136 (1985-10-01), Zens
patent: 4563648 (1986-01-01), Hill
patent: 5247256 (1993-09-01), Marek
patent: 5545994 (1996-08-01), Barbara
patent: 5572127 (1996-11-01), Wong et al.

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