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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},
}