Mapping of Flow and Acceleration with NMR Microscopy Techniques

In this contribution, radio frequency and field gradient pulse sequences for the encoding of position, velocity, and acceleration will be described and explained. The applicability of the techniques will be demonstrated by presenting experimentally obtained velocity and acceleration maps of fluid flow in artificial pore spaces. Porous model objects fabricated on the basis of random percolation clusters are taken as a paradigm for networks in any sort of natural or technical pores or channel complexes. Numerically obtained velocity and acceleration maps will be compared to the experimental data to test the reliability of the methods.