Application of a portable nuclear magnetic resonance surface probe to porous media

Marko, Andriy; Wolter, Bernd; Arnold, W.

doi:10.1016/j.jmr.2006.10.009

Cited by 23 publications

(18 citation statements)

References 28 publications

(41 reference statements)

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“…A classical geometry for such a single-sided sensor employs a magnet in the shape of a ''u" or a horseshoe (Fig. 6b) [25,42,43,46,184,185]. This shape is obtained by opening up a conventional c-shaped magnet with a homogeneous field between its poles (Fig.…”

Section: Magnets For Unilateral Nmrmentioning

confidence: 99%

“…1a) [19,24], building materials (Fig. 1d) [24,25] and food [26][27][28][29][30][31][32], explosives detection [33][34][35][36][37][38][39][40], quality and product control [41][42][43][44], medical diagnostics [16] and on-line monitoring (Fig. 1c) [16,18,26,27,30,45] well before the commercialization of well-logging NMR in the mid 1990s.…”

Section: Introductionmentioning

confidence: 99%

“…In (c) Online sensor to measure moisture in a product stream [18]. (d) Sensor to measure moisture in building materials [17,25]. (e) Gunnar Eidmann measuring a car tire with the first NMR-MOUSE (photo by B. Blü mich) [46].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mobile single-sided NMR

Blümich

Perlo

Casanova

2008

Progress in Nuclear Magnetic Resonance Spectroscopy

425

299

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Section: Magnets For Unilateral Nmrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mobile single-sided NMR

Blümich

Perlo

Casanova

2008

Progress in Nuclear Magnetic Resonance Spectroscopy

425

299

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“…As an example, consider portable NMR devices (Eidmann et al, 1996;Prado, 2003;Blümich et al, 2002;Manz et al, 2006;Marble et al, 2006;Marko et al, 2007;McDonald et al, 2007) which opened up the possibility to examine samples on the spot, be it in the field or in archives. While these devices are currently far from capable of producing images comparable to those presented here, the characteristic relaxation parameters or spectral fingerprints they already can measure could become a valuable non-invasive categorisation tool when screening rock samples for embedded fossils.…”

Section: Perspectives For Fossil Mrimentioning

confidence: 99%

Three-dimensional Magnetic Resonance Imaging of fossils across taxa

Mietchen

Aberhan²,

Manz

et al. 2008

Biogeosciences

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Abstract. The frequency of life forms in the fossil record is largely determined by the extent to which they were mineralised at the time of their death. In addition to mineral structures, many fossils nonetheless contain detectable amounts of residual water or organic molecules, the analysis of which has become an integral part of current palaeontological research. The methods available for this sort of investigations, though, typically require dissolution or ionisation of the fossil sample or parts thereof, which is an issue with rare taxa and outstanding materials like pathological or type specimens. In such cases, non-destructive techniques could provide a valuable methodological alternative. While Computed Tomography has long been used to study palaeontological specimens, a number of complementary approaches have recently gained ground. These include Magnetic Resonance Imaging (MRI) which had previously been employed to obtain three-dimensional images of pathological belemnites non-invasively on the basis of intrinsic contrast. The present study was undertaken to investigate whether 1 H MRI can likewise provide anatomical information about nonpathological belemnites and specimens of other fossil taxa. To this end, three-dimensional MR image series were acquired from intact non-pathological invertebrate, vertebrate and plant fossils. At routine voxel resolutions in the range of several dozens to some hundreds of micrometers, these images reveal a host of anatomical details and thus highlight the potential of MR techniques to effectively complement existing methodological approaches for palaeontological investigations in a wide range of taxa. As for the origin of the MR signal, relaxation and diffusion measurements as well as 1 H and 13 C MR spectra acquired from a belemnite suggest intracrystalline water or hydroxyl groups, rather than organic residues.

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“…Starting from inside-out probes for borehole applications [1,2], a variety of more sophisticated portable NMR probes has been built since. Based on the magnet design and the application, these sensors can be categorised into two groups: The first group operates with open, or one-sided access, magnet systems and is usually applied to large samples, which are too large or too immobile to be transported to a laboratory magnet [3][4][5][6][7][8][9][10][11][12][13][14]. Although such NMR sensors are now routinely used for applications such as relaxation time analysis (e.g.…”

Section: Introductionmentioning

confidence: 99%