Optimization of the DANTE pulse sequence for selective NMR excitation in strongly inhomogeneous magnetic fields

摘要

The possibility to improve the quality of the selective excitation, at low radio-frequency power, in the strongly inhomogeneous magnetic fields of the NMR-MOUSE is explored. Important safe of RF power is obtained by replacing the standard Hahn echo pulse sequence by DANTE-DANTE echo pulse sequence. The quality of the response spectrum is analyzed in function of the parameters of DANTE pulse sequence. The development of low-power selective excitation in unilateral NMR is an important step towards low-power operation of the NMR-MOUSE to increase its mobility.