Method for reducing ringing in NMR measurements by combining...

Details Method for reducing ringing in NMR measurements by combining... Method for reducing ringing in NMR measurements by combining...

2005-10-18

2005-10-18

Shrivastav, Brij (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using well logging device

Reexamination Certificate

active

06956370

ABSTRACT:
A method of reducing ringing artifacts in a nuclear magnetic resonance measurement is provided. The method utilizes a new pulse sequence that offers ringing cancellation opportunities as well as compensation for otherwise accumulating spin dynamics errors. Ringing cancellation is accomplished by forming linear combinations of spin echoes induced as a result of the pulse sequence. Because the linear combinations are formed between closely spaced spin echoes (i.e., echoes within the same sequence), the likelihood that the ringing artifact will have changed between measurements is diminished.

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