Method and apparatus for correcting ringing in NMR signals

Details Method and apparatus for correcting ringing in NMR signals Method and apparatus for correcting ringing in NMR signals

2006-10-24

2006-10-24

Gutierrez, Diego (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using well logging device

Reexamination Certificate

active

07126333

ABSTRACT:
Estimates of ringing produced by short recovery pulse sequences (CPMG or modified CPMG) are used to improve the effects of ringing in a conventional CPMG or modified CPMG sequences. This is an effective method for removal of ringing when the ringing is varying over a time interval that would be spanned by a phase alternated pair of conventional sequences. By use of frequency dithering, ringing due to the excitation pulse and the refocusing pulses can be removed.

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