Diffusion

Pulsed-field-gradient (PFG) NR techniques have been used for many years to measure diffusion effects and molecular motion in liquids and solids, and interest in variousapplications continues to grow. PFG techniques are used to study the mobility of molecules and to characterize mixtures.
 

In MRI the so-called q-space imaging the measurement if restricted diffusion provides information about porous systems.  Based on manufacturing methods based on experience from whole body gradient systems smaller gradient systems for high field applicationprovide gradient strengths of up to 24T/m.
 

These amplitudes are required for studies of high-MW or viscous samples with small diffusion coefficients. We provide the diffusion probes  Diff30 (18T/m) and Diff60 (24 T/m). Both were optimized for minimum switching times and provide excellent field linearity over the sample volume. Water cooling aloows experiments with high duty cycles.  The probes include next to the gradient system exchangeable rf coil inserts with various inner diameters and resonance frequencies.