Susceptibility effects in unsaturated porous silica

Allen, S.G. and Mallett, M.J.D. and Smith, Mark E. and Strange, John H. (1998) Susceptibility effects in unsaturated porous silica. Magnetic Resonance Imaging, 16 (5-6). pp. 597-600. ISSN 0730-725X. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Nuclear magnetic resonance proton line widths have been studied as the saturation level of water in a porous silica system is varied, Two silica samples were used with nominal pore sizes of 60 and 140 Angstrom. It was found that the line width increased with saturation level for both systems; this is consistent with the saturation process suggested by Alien at al, At low saturation levels the peak shift, from bulk water, increased with the saturation level reaching a maximum at filling factors of approximately 40% and 20% for the 60- and 140-Angstrom samples, respectively, after which point it began to decrease. Analysis is currently under way to try to model this system to determine whether these results are also consistent. It is anticipated that further analysis will give information on the pore morphology of the system.

Item Type: Article
Uncontrolled keywords: porous media; susceptibility; NMR; water
Subjects: R Medicine
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: I. Ghose
Date Deposited: 05 Apr 2009 17:46
Last Modified: 09 Jun 2014 10:21
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