Two-Dimensional NMR of Velocity Exchange: VEXSY and SERPENT

Two different multidimensional pulsed field gradient sequences are compared which have the purpose of correlating spin displacements in different time intervals with each other. The simplest possible sequence, three-pulse SERPENT, measures displacements in two interleaved time intervals, while in VE...

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Published in:Journal of magnetic resonance (1997) 2001-09, Vol.152 (1), p.162-167
Main Authors: Blümich, B., Callaghan, P.T., Damion, R.A., Han, S., Khrapitchev, A.A., Packer, K.J., Stapf, S.
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Language:English
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Magnetic Resonance Spectroscopy - methods
Mathematics
Time Factors
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description Two different multidimensional pulsed field gradient sequences are compared which have the purpose of correlating spin displacements in different time intervals with each other. The simplest possible sequence, three-pulse SERPENT, measures displacements in two interleaved time intervals, while in VEXSY, consisting of two independent pairs of gradient pulses separated by a mixing time, displacements during the two encoding intervals are compared to each other. The formalism for both sequences is discussed in q space and in displacement space and common features as well as differences between the two types of experiments are highlighted, employing the particular case of the concurrent VEXSY scheme which allows treatment according to both formalisms.
doi_str_mv 10.1006/jmre.2001.2395
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subjects Magnetic Resonance Spectroscopy - methods
Mathematics
Time Factors
title Two-Dimensional NMR of Velocity Exchange: VEXSY and SERPENT
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