Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1987-06-22
1988-04-12
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324307, G01R 3320
Patent
active
047377143
ABSTRACT:
A magnetic resonance spectroscopic system for receiving a magnetic resonance signal from a localized area in a certain slice in a sample and obtaining a frequency spectrum of the magnetic resonance signal based on the received signal, includes control means for selectively exciting regions sandwiching a zone containing said localized area in one of x- and y-axis directions in said slice, thereafter applying a spoiler to eliminate lateral spin components from said regions, selectively exciting regions sandwiching a zone containing said localized area in the other of x- and y-axis directions in said slice, thereafter applying a spoiler to eliminate lateral spin components from said last-mentioned regions, and then exciting a zone containing said localized area in a z.sub.y -axis direction to extract a magnetic resonance signal of said localized area. The magnetic resonance spectroscopic system is of a simple arrangement capable of facilitating measurements and producing a magnetic resonance signal of a localized area located at a desired depth in the sample under examination.
REFERENCES:
patent: 4319190 (1982-03-01), Brown
patent: 4480228 (1984-10-01), Bottomley
patent: 4689563 (1987-08-01), Bottomley
patent: 4689564 (1987-08-01), Leue et al.
patent: 4694250 (1987-09-01), Iwaoka
patent: 4698592 (1987-10-01), Feinberg
Kabushiki Kaisha Toshiba
Tokar Michael J.
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