Controlled susceptibility plugs

Details Controlled susceptibility plugs Controlled susceptibility plugs

1983-04-07

1985-10-22

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324321, G01R 3308

Patent

active

045491364

ABSTRACT:
It is desired to promote magnetic homogeneity of materials, including structural elements, present in the sensitive volume of a gyromagnetic analysis apparatus. Where the sample is rotated along an axis transverse to the field the requirement reduces to establishing axial homogeneity. Plugs which match the solvent magnetic susceptibility are employed to constrain a sample within the central region of an RF probe coil thereby appearing relatively invisible in the magnetic sense to the instrument. The susceptibility of materials can be tailored to achieve a desired value to suppress magnetic perturbation without introducing extraneous signals.

REFERENCES:
patent: 3593117 (1971-07-01), Koch
patent: 3757204 (1973-09-01), Hyde
patent: 4301411 (1981-11-01), Wardell
patent: 4365199 (1982-12-01), McNair
Shoolery, NMR/EPR Spectroscopy Technical Information Bulletin, vol. III, No. 3, pp. 8-9.

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