Method for the determination of the nuclear magnetization distri

Details Method for the determination of the nuclear magnetization distri Method for the determination of the nuclear magnetization distri

1987-01-07

1988-03-22

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

047331844

ABSTRACT:
The invention relates to a sequence with a very short echo time. However, during the measurement, there is a constant gradient, the direction of which is varied from sequence to sequence, while its magnitude remains constant. The shortening of the echo time is achieved in that in the first instance on both sides of the layer to be excited, two comparatively thick regions are excited. The nuclear magnetization excited in these regions is dephased, and subsequently a likewise comparatively thick region is excited by a further high-frequency pulse, which encompasses the layer to be excited as well as a part of the regions on both sides of the layer.

REFERENCES:
patent: 4506222 (1985-03-01), Edelstein
patent: 4516582 (1985-05-01), Redington
patent: 4602214 (1986-07-01), Edelstein
patent: 4625170 (1986-11-01), Yamamoto

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