US Patent 10241162 NMR-MAS turbine assembly

A nuclear magnetic resonance-magic angle spinning (NMR-MAS) turbine assembly has a MAS rotor with turbine cap having a stopper region and a turbine region. The stopper region allows feeding into a rotor tube and has at least one sealing section for resting against an inner wall of the rotor tube. The turbine region has a collar section for resting against a face side of the rotor tube and a turbine section that forms the turbine blades, which protrude axially from the collar section without extending radially further than the collar section. The arrangement of the rotor allows for very high rotation frequencies that, correspondingly, reduce line broadening in NMR measurements.