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Abstract

A method is disclosed for a multi-dimensional measurement of magnetic resonance in defined small volume regions of solid-state samples. The samples are arranged in a uniform homogeneous magnetic field and, in a predetermined manner, irradiated with a sequence of high frequency pulses as well as exposed to a sequence of gradient magnetic field pulses. This is done in such a way that the spin magnetization to be measured is maintained for a time interval which is longer then the amount of time needed to switch-off the gradient magnetic field pulses. Initially, in a first time interval, the magnetization of a single slice only of the sample is transferred into a transverse magnetization tilted by 90.degree. with respect to the direction of the constant homogeneous magnetic field. Thereupon, in a second time interval, volume selective gradient magnetic field pulses are irradiated on the sample. In a subsequent third time interval, during the persistance of the volume selective gradient magnetic field pulses, high frequency pulses are irradiated on the sample, for transferring the transverse magnetization in the volume region to be measured into a multipole-state, said state being insensitive to the volume selective magnetic field pulses and persisting until after the point in time when these pulses are switched-off. Finally, in a subsequent fourth time interval, the multipole-state is transferred back again into a transverse magnetization and this magnetization is read-out as a signal.

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