Pulse sequence and method for creating a radio-frequency magneti

Details Pulse sequence and method for creating a radio-frequency magneti Pulse sequence and method for creating a radio-frequency magneti

1994-01-04

1996-05-28

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01V 300

Patent

active

055215041

ABSTRACT:
A composite RF pulse is created from a sequence of conventional homogeneous RF pulses and conventional gradient RF pulses and the composite pulse generates a gradient magnetic field with a spatially varying amplitude, but a spatially independent phase. In one embodiment of the invention, the pulse sequence consists of four conventional gradient RF pulses interspersed with two conventional homogeneous RF pulses. In another embodiment of the invention, a conventional gradient RF pulse is combined with a conventional homogeneous RF pulse and the pulse pair is repeated in order to generate an effective magnetic field with a spatially varying amplitude, but a spatially independent phase.

REFERENCES:
patent: 5229718 (1993-07-01), Cory
patent: 5260655 (1993-11-01), Cory
patent: 5327087 (1994-07-01), Hafner et al.

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