Flow in porous metallic materials: A magnetic resonance imaging study

Authors

  • Shoujun Xu PhD,

    1. Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA
    2. Department of Chemistry, University of California, and Nuclear Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
    Search for more papers by this author
  • Elad Harel PhD,

    1. Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA
    2. Department of Chemistry, University of California, and Nuclear Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
    Search for more papers by this author
  • David J. Michalak PhD,

    1. Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA
    2. Department of Chemistry, University of California, and Nuclear Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
    Search for more papers by this author
  • Charles W. Crawford MSc,

    1. Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA
    2. Department of Chemistry, University of California, and Nuclear Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
    Search for more papers by this author
  • Dmitry Budker PhD,

    Corresponding author
    1. Department of Physics, University of California, Berkley, California, USA
    2. Nuclear Sciences Division, Lawrence Berkley National Laboratory, Berkley, California, USA
    • Room 273, Birge Hall, University of California, Berkeley, CA 94720
    Search for more papers by this author
  • Alexander Pines PhD

    1. Materials Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA
    2. Department of Chemistry, University of California, and Nuclear Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
    Search for more papers by this author

Abstract

Purpose

To visualize flow dynamics of analytes inside porous metallic materials with laser-detected magnetic resonance imaging (MRI).

Materials and Methods

We examine the flow of nuclear-polarized water in a porous stainless steel cylinder. Laser-detected MRI utilizes a sensitive optical atomic magnetometer as the detector. Imaging was performed in a remote-detection mode: the encoding was conducted in the Earth's magnetic field, and detection is conducted downstream of the encoding location. Conventional MRI (7T) was also performed for comparison.

Results

Laser-detected MRI clearly showed MR images of water flowing through the sample, whereas conventional MRI provided no image.

Conclusion

We demonstrated the viability of laser-detected MRI at low-field for studying porous metallic materials, extending MRI techniques to a new group of systems that is normally not accessible to conventional MRI. J. Magn. Reson. Imaging 2008;28:1299–1302. © 2008 Wiley-Liss, Inc.

Ancillary