In situ proton stray-field (STRAFI) nuclear magnetic resonance (NMR) imaging of diamagnetic samples in simulated microgravity is described. The magnetic field gradient at the edge of the superconductive coil in the magnet of a NMR spectrometer is exploited to levitate diamagnetic samples and, at the same time, obtain their corresponding one-dimensional NMR images. Proton T2 (spin-spin relaxation time)/ diffusion-weighted profiles of samples under simulated microgravity conditions are acquired with a solid-echo radiofrequency pulse sequence. Since water is a diamagnetic main constituent substance of living systems, the methodology described could be useful to monitor non-destructively changes in the NMR properties of water protons induced by simulated microgravity and magnetic forces. Furthermore, this approach may be used to observe other NMR-sensitive nuclei of interest, e.g., fluor-19, phosphorous-31, carbon-13, etc.


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    Titel :

    Proton magnetic resonance imaging of specimens in simulated microgravity


    Weitere Titelangaben:

    Protonen-Kernspintomographie von Proben unter simulierter Mikrogravitation


    Beteiligte:
    Garrido, Leonico (Autor:in) / Sampayo, Jose (Autor:in)


    Erscheinungsdatum :

    2009


    Format / Umfang :

    6 Seiten, 5 Bilder, 16 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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