Diffusion pore imaging with generalized temporal gradient profiles
Kuder TA, Laun FB (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 31
Pages Range: 1236-1244
Journal Issue: 7
DOI: 10.1016/j.mri.2013.03.027
Abstract
In porous material research, one main interest of nuclear magnetic resonance diffusion (NMR) experiments is the determination of the shape of pores. While it has been a longstanding question if this is in principle achievable, it has been shown recently that it is indeed possible to perform NMR-based diffusion pore imaging. In this work we present a generalization of these previous results. We show that the specific temporal gradient profiles that were used so far are not unique as more general temporal diffusion gradient profiles may be used. These temporal gradient profiles may consist of any number of "short" gradient pulses, which fulfil the short-gradient approximation. Additionally, "long" gradient pulses of small amplitude may be present, which can be used to fulfil the rephasing condition for the complete profile. Some exceptions exist. For example, classical q-space gradients consisting of two short gradient pulses of opposite sign cannot be used as the phase information is lost due to the temporal antisymmetry of this profile. © 2013 Elsevier Inc.
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Germany (DE)How to cite
APA:
Kuder, T.A., & Laun, F.B. (2013). Diffusion pore imaging with generalized temporal gradient profiles. Magnetic Resonance Imaging, 31(7), 1236-1244. https://doi.org/10.1016/j.mri.2013.03.027
MLA:
Kuder, Tristan A., and Frederik Bernd Laun. "Diffusion pore imaging with generalized temporal gradient profiles." Magnetic Resonance Imaging 31.7 (2013): 1236-1244.
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