DETERMINATION OF SPECTRAL DISTRIBUTION OF NUCLEAR MAGNETIZATION IN A LIMITED VOLUME

摘要

The invention relates to a method of determining the spectral distribution of the nuclear magnetization in a limited volume. To this end, the nuclear magnetization is excited in three mutually perpendicular layers by means of three successive high-frequency pulses. The stimulated echo signal generated at the area of intersection of the three layers is subjected to a Fourier transformation. The spin resonance signals additionally generated by the three high-frequency pulses are suppressed in that magnetic gradient fields are activated during the three intervals between the high-frequency pulses and between the last high-frequency pulse and the stimulated echo signal.