Author： Ardelean I. Kimmich R. Stapf S. demco D.E.
Publisher： Academic Press
ISSN： 1090-7807
Source： Journal of Magnetic Resonance, Vol.127, Iss.2, 1997-08, pp. : 217-224
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Three-pulse sequences in the presence of magnetic field gradients at high magnetic fields produce multiple nonlinear stimulated echoes (NOSE) at times ntau1 after the third pulse, where n is an integer and tau1 the interval between the first two pulses. These phenomena are due to the demagnetizing field produced by the spatial modulation of the nuclear magnetization arising in the sample after the first two pulses. The theory is presented and compared with experiments. The dependence of the NOSE amplitudes on the flip angles and on the pulse intervals is described. Implications for multidimensional NMR experiments based on sequences of three or more pulses in the presence of field gradients are discussed.
Related content
Stimulated phonon echoes in resonant powders
Journal de Physique Lettres, Vol. 39, Iss. 21, 1978-11 ,pp. :
Access to resources
Recommend
By Ardelean I. Stapf S. demco D.E. Kimmich R.
Journal of Magnetic Resonance, Vol. 124, Iss. 2, 1997-02 ,pp. :
Single-Shot Line Scan Imaging Using Stimulated Echoes
Journal of Magnetic Resonance, Vol. 137, Iss. 1, 1999-03 ,pp. :