A theoretical study of the biselective double pulsed field gradient spin-echo NMR experiment
Fiche publication
Date publication
janvier 2007
Auteurs
Membres identifiés du Cancéropôle Est :
Dr NUZILLARD Jean-Marc
Tous les auteurs :
Nuzillard JM
Lien Pubmed
Résumé
The application of a biselective radiofrequency pulse to a coupled homonuclear spin system produces effects that are exploited in liquid-state NMR experiments. The insertion of such an RF pulse in a double pulsed field gradient spin echo sequence results in a module for the biselective production of antiphase magnetization states. Biselectivity is obtained through cosine modulation of a singly selective pulse profile. A full description of the module behaviour is possible by means of four parameters, of which two are related to a property called 'pulse ellipticity'. The theory is in good agreement with the experimental results and numerical simulations. It is thus possible to predict how a maximum of antiphase magnetization can be produced.
Référence
Mol Phys. 2007;105(17-18):2243-50