title: NMR at very low fields.
abstract: Although nuclear magnetic resonance in low fields around or below the Earth's magnetic field is almost as old as nuclear magnetic resonance itself, the recent years have experienced a revival of this technique that is opposed to the common trend towards higher and higher fields. The background of this development is the expectation that the low-field domain may open a new window for the study of molecular structure and dynamics. Here, we will give an overview on the specific features in the low-field domain, both from the technical and from the physical point of view. In addition, we present a short passage on the option of magnetic resonance imaging in fields of the micro-Tesla range.
authors.affiliation: Physikalisch-Technische Bundesanstalt, Berlin, Germany. lutz.trahms@ptb.de
authors.forename: Lutz
authors.initials: L
authors.lastname: Trahms
authors.forename: Martin
authors.initials: M
authors.lastname: Burghoff
mesh_terms: D000465:Algorithms; D001921:Brain / Q000473:pathology*; D003952:Diagnostic Imaging / Q000379:methods; D018534:Earth, Planet; D004574:Electromagnetic Fields; D005583:Fourier Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008280:Magnetics; D010825:Physics / Q000379:methods