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@ARTICLE{HaberPohlmeier:904447,
author = {Haber-Pohlmeier, Sabina and Caterina, David and Blümich,
Bernhard and Pohlmeier, Andreas},
title = {{M}agnetic {R}esonance {I}maging of {W}ater {C}ontent and
{F}low {P}rocesses in {N}atural {S}oils by {P}ulse
{S}equences with {U}ltrashort {D}etection},
journal = {Molecules},
volume = {26},
number = {17},
issn = {1420-3049},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2021-06017},
pages = {5130 -},
year = {2021},
abstract = {Magnetic resonance imaging is a valuable tool for
three-dimensional mapping of soil water processes due to its
sensitivity to the substance of interest: water. Since
conventional gradient- or spin-echo based pulse sequences do
not detect rapidly relaxing fractions of water in natural
porous media with transverse relaxation times in the
millisecond range, pulse sequences with ultrafast detection
open a way out. In this work, we compare a spin-echo
multislice pulse sequence with ultrashort (UTE) and zero-TE
(ZTE) sequences for their suitability to map water content
and its changes in 3D in natural soil materials.
Longitudinal and transverse relaxation times were found in
the ranges around 80 ms and 1 to 50 ms, respectively, so
that the spin echo sequence misses larger fractions of
water. In contrast, ZTE and UTE could detect all water, if
the excitation and detection bandwidths were set
sufficiently broad. More precisely, with ZTE we could map
water contents down to 0.1 cm3/cm3. Finally, we employed ZTE
to monitor the development of film flow in a natural soil
core with high temporal resolution. This opens the route for
further quantitative imaging of soil water processes.},
cin = {IBG-3},
ddc = {540},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {2173 - Agro-biogeosystems: controls, feedbacks and impact
(POF4-217)},
pid = {G:(DE-HGF)POF4-2173},
typ = {PUB:(DE-HGF)16},
pubmed = {34500563},
UT = {WOS:000694393600001},
doi = {10.3390/molecules26175130},
url = {https://juser.fz-juelich.de/record/904447},
}