Rotating frame pulsed nuclear magnetic resonance spectroscopy
US9720128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2013 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | May 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/4633
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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 (T1ρ) at a predefined frequency. The T1ρ parameter can be measured in conjunction with the measurement of other relaxation and/or diffusion parameters as part of multidimensional NMR experiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.