Instruments C(MR)2

In studies of the transport in porous materials it is important to measure concentration profiles of moisture and ions non-destructively. Nuclear Magnetic Resonance (NMR) is a powerful technique to measure the time evolution of e.g. moisture profiles with a high spatial resolution. However, many technological porous materials contain large amounts of para-magnetic ions, which complicates the NMR measurements. Therefore the moisture transport is studied using specially developed NMR scanners which have the possibility to measure quantitative using a Faraday shield. Here a short overview is give of the instruments and the main characteristics

1.5 T - 60 Mhz (Philips)
    3D medical imaging
    insert high temperature >300^oC, grad 0.3 T/m
    H/Na imaging

     4.7T - 200 Mhz
    digital NMR (Spincore based)
    1D, grad 0.6 T/m max grad
     H, Li, Na, Cl imaging

    0.7 T - 31 Mhz
    digital NMR (Spincore based)

1D, grad 0.6 T/m max

H-imaging

0.8 T - 33.1 Mhz

digital NMR (Spincore based)
1D, grad max 0.3 T/m
H/Na imaging

0.7 T - 30 Mhz

digital NMR (Spincore based)
2

D, max grad 0.3 T/m

H, Na, Li imaging

0.8 T - 34 Mhz

    digital NMR (Spincore based)
    1D, max grad 0.4T/m
    H, Li, Na imaging

    1.5 T - 60 Mhz
    analog NMR
    1D, grad 36 T/m continuous
    H imaging

    1.5 T - 60 Mhz
    analog NMR
    1D, grad 40 T/m continuous (resolution ~10 µm)
    H imaging

Last updated : 31-07-2020