Nuclear magnetic resonance detection in inhomogeneous magnetic fields

US7439738B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Alexander Pines · Berkeley, US
• Daniel Topgaard · Lund, SE
• Dimitrios Sakellariou · Oakland, US
• Rachel W. Martin · Irvine, US
• Carlos A. Meriles · Corona, US

Key dates

• Filing date: Jan 19, 2007
• Grant date: Oct 21, 2008
• Expiry date: Jan 19, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56563
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Methods and systems for compensating for static magnetic field inhomogeneities during nuclear magnetic resonance detection are disclosed. Application of radio frequency pulses and/or magnetic field gradients may be used to correct for spin dephasing caused by the inhomogeneities. The methods and system may be used to improve signal-to-noise ratios in NMR and MRI systems where magnetic field inhomogeneity may have an effect.