PROCESS OF OBSERVATION OF SIGNALS OF QUADRUPOLE SPIN ECHO Russian patent published in 2001 - IPC

FIELD: spectroscopy, study of structures of chemical compounds. SUBSTANCE: process includes action on specimen with three-pulse train of radio frequency pulses with time intervals τ₁ and τ₂ between them and repetition period T₀ and recording of response signals. Time interval τ₁ is set greater than 22τ₂, but shorter than time of transverse relaxation T₂, and period T₀ is reduced till maxima of amplitudes of echo signals in interval between first and second pulses are observed. EFFECT: possibility of observation of all echo signals under three-pulse action on specimen. 1 dwg