14N magnetic resonance for materials detection in the field
B. H. Suits, A. N. Garroway, J. B. Miller, and K. L. Sauer
Nitrogen is prevalent in many materials, both naturally occurring and
man-made. In particular, it is found in many explosives and other
contraband materials. One technique for the detection of such
materials in the field is the use of the magnetic resonance signal from
the nearly 100% abundant, spin-1, 14N nuclei. Some of
the difficulties with such measurements in the field include spurious
signals from acoustic resonances, radio-frequency interference, and
generally low signal-to-noise ratios. A summary of recent work
by the authors to help mitigate these difficulties is presented.
Solid State Nuclear Magnetic Resonance 24, 123-136 (2003).
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