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NMR for Process Control. Imaging and Localized NMR in Soft Matter
NMR or nuclear magnetic resonance is a spectroscopic method which employs magnetic fields and radio-frequency waves. In chemistry it is a standard method for structural analysis, but it is also known in medicine as magnetic resonance tomography which is a well-established diagnostic imaging method. Its success in medical imaging derives from the comparatively high sensitivity …
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Die NMR-Maus
Während die Kernspintomographie in der medizinischen Diagnostik einen festen Platz hat, ist ihr Einsatz in der Materialforschung noch relativ unbekannt. Dennoch bietet sie im Bereich der Kunststoffe und des Stofftransports vielfältige Anwendungsmöglichkeiten und kann zusätzliche Information zu etablierten Methoden der zerstörungs‐freien Materialprüfung liefern [1]. An dem neu eingerichteten Zentrum für Magnetische Resonanz der RWTH‐Aachen wurde …
Magnets for Small‐Scale and Portable NMR
The dominating component of most NMR instruments is the magnet, as it typically exceeds the electronics and the sample in size and weight. To shrink the complete instrument to compact size, a prime challenge rests in the miniaturization of the magnet. In this endeavor, most efforts today focus on magnets from permanently magnetic materials. This …
Miniaturized NMR-MOUSE with a High Magnetic Field Gradient (Mini-MOUSE)
Mobile nuclear magnetic resonance sensors still suffer from relatively high weight and large dimensions, although they are already considerably smaller than superconducting high-field magnets. Application of such sensors for an accurate analysis of rigid materials and thin layers is limited by the echo time of the radiofrequency (rf) coil and the spatial resolution of the …
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