magic angle spinning nuclear magnetic resonance spectroscopy combined rotation and multiple pulse spectroscopy CHMO:0000616 combined rotation and multiple pulse spectrometry A type of NMR spectroscopy using a solid sample. Anisotropic interactions between nuclei, which are usually averaged by Brownian motion in liquid samples, cause significant line broadening in solid state NMR, but can be averaged to zero by spinning the sample very rapidly at the magic angle (54.74° with respect to the direction of the magnetic field).The combination of multiple-pulse NMR experiments and magic angle spinning. Each experiment consists of a sequence of radio frequency pulses with delay periods in between them. CRAMPS