Pushing the Detection Limit of Static Wideline NMR Spectroscopy Using Ultrafast Frequency-Swept Pulses
Jonas Koppe, Joop Enno Frerichs, Michael Ryan Hansen
Abstract
We report a simple design strategy for wideband uniform-rate smooth truncation (WURST) pulses that enables ultrafast frequency sweeps to maximize the sensitivity of Carr-Purcell-Meiboom-Gill (CPMG) acquisition in static wideline nuclear magnetic resonance (NMR). Three compelling examples showcase the advantage of ultrafast frequency sweeps over currently employed WURST-CPMG protocols, demonstrating the potential of investigating materials that are typically inaccessible to static wideline NMR techniques, e.g., paramagnetic solids with short homogeneous transverse relaxation times.
Topics & Concepts
Ultrashort pulseSensitivity (control systems)Relaxation (psychology)Nuclear magnetic resonanceLimit (mathematics)SpectroscopyNuclear magnetic resonance spectroscopyWidebandTransverse planePhysicsComputational physicsOpticsElectronic engineeringQuantum mechanicsEngineeringMathematicsStructural engineeringMathematical analysisPsychologySocial psychologyLaserNMR spectroscopy and applicationsAdvanced NMR Techniques and ApplicationsAdvanced MRI Techniques and Applications