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1H-14N cross-relaxation in trinitrotoluene - a step toward improved landmine detection

Markus Nolte1,4, Alexei Privalov1, Jürgen Altmann2, Vladimir Anferov3 and Franz Fujara1

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Motivated by the lack of efficient detection techniques for metal-free trinitrotoluene (TNT) containing landmines, 1H-14N cross-relaxation experiments on TNT have been performed using field-cycling spectroscopy in an electronically switchable volume coil. Using 1H NMR detection (indirect method), the 14N quadrupole spectra in several small (about 0.5 g) TNT samples of different producers are determined. The experiment is considered as a step toward a double resonance TNT landmine detection scheme using surface coils.


PACS

76.60.Gv Quadrupole resonance

76.60.Es Relaxation effects

Subjects

Condensed matter: electrical, magnetic and optical

Dates

Issue 9 (7 May 2002)

Received 9 November 2001

Published 16 April 2002



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