ELECTRON SPIN ECHO SYSTEM HAVING RF PULSE INVERSION PREPARATION OF THE SPIN ECHO SAMPLE

摘要

Method and apparatus for inverting the population of a pair of adjacent spin levels associated with a spin-echo sample when situated in a unidirectional magnetic field by means of a preparatory inversion RF pulse of a different RF frequency from the RF frequency of the input and recall RF pulses necessary for the generation of a spin-echo signal.