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US-9223048-B2 · Dec 29, 2015 · US
Rotating frame pulsed nuclear magnetic resonance spectroscopy
US9720128B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9720128-B2 |
| Application number | US-201313768965-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 15, 2013 |
| Priority date | Feb 15, 2013 |
| Publication date | Aug 1, 2017 |
| Grant date | Aug 1, 2017 |
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Abstract
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An NMR method and apparatus for analyzing a sample of interest applies a static magnetic field together with RF pulses of oscillating magnetic field across a sample volume that encompasses the sample of interest. The RF pulses are defined by a pulse sequence that includes a plurality of measurement segments configured to characterize a plurality of relaxation parameters related to relaxation of nuclear magnetization of the sample of interest. Signals induced by the RF pulses are detected in order to derive the relaxation parameters. The measurement segments of the pulse sequence include at least one first-type measurement segment configured to characterize relaxation of spin-lattice interaction between nuclei of the sample of interest in a rotating frame (T 1ρ ) at a predefined frequency. The T 1ρ parameter can be measured in conjunction with the measurement of other relaxation and/or diffusion parameters as part of multidimensional NMR experiments.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for analyzing a sample of interest comprising: (a) while applying at least a static magnetic field across a sample volume that encompasses the sample of interest, applying radio-frequency pulses of oscillating magnetic field across the sample volume, wherein the radio-frequency pulses are characterized by a component in a plane transverse to the static magnetic field, and wherein the pulses are defined by a pulse sequence that includes a plurality o…
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Physics · mapped topic
- G01V3/32Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9720128B2 cover?
- An NMR method and apparatus for analyzing a sample of interest applies a static magnetic field together with RF pulses of oscillating magnetic field across a sample volume that encompasses the sample of interest. The RF pulses are defined by a pulse sequence that includes a plurality of measurement segments configured to characterize a plurality of relaxation parameters related to relaxation of…
- Who is the assignee on this patent?
- Schlumberger Technology Corp
- What technology area does this patent fall under?
- Primary CPC classification G01V3/32. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 01 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).