Method for the recording of spin resonance spectra and an apparatus for the implementation of such method

摘要

A method for the recording of spin resonance spectra, in which the spins of a nuclear species of a sample located in a magnetic field are excited by a pulsed rf signal and the relaxation oscillations of the spins are repetitively sampled and recorded at predetermined times and in which a radio-frequency decoupling signal is irradiated upon the sample to reduce coupling to the spins of another nuclear species, is characterized in that the decoupling signal consists of a periodic sequence of pulse groups comprising several pulses each, the pulses being so short that the frequency mixture detectable in the pulses according to the Fourier analysis covers the entire range of spin resonances of the other nuclear species.