Nuclear quadrupole resonance (NQR) method and probe for generating RF magnetic fields in different directions to distinguish NQR from acoustic ringing induced in a sample
US6522135B2 · kind B2 · utility
15Cited by
3References
33Claims
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Key dates
| Filing date | Aug 1, 1997 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Aug 1, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/441
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nuclear quadrupole resonance (NQR) method and probe for generating RF magnetic fields in different directions to distinguish NQR from acoustic ringing induced in a sample. Generally, an RF magnetic field is generated along an axis towards a sample to induce a resonance signal in the sample. The resonance signal includes NQR and acoustic ringing. The resonance signal is detected along the RF magnetic field axis. The acoustic ringing is detected along a direction orthogonal to the RF magnetic field axis. As a result, the NQR in the resonance signal can be distinguished from the acoustic ringing in the resonance signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.