Stabilized fast spin echo NMR pulse sequence with improved slice

Details Stabilized fast spin echo NMR pulse sequence with improved slice Stabilized fast spin echo NMR pulse sequence with improved slice

1993-07-15

1994-09-06

Wieder, Kenneth A.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01R 3348

Patent

active

053451767

ABSTRACT:
A fast spin echo NMR pulse sequence is modified to stabilize the magnitude of early NMR echo signals produced during each shot. Stabilization is accomplished by modifying the amplitude of the nutation angle produced in the spins by the corresponding RF refocusing pulses. This stabilization is relaxed for the first RF refocusing pulse so that its maximum RF power can be reduced relative to that of the other RF refocusing pulses and the bandwidth thereof increased to improve the slice select profile.

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