Remote Sensing for the Detection of Explosives and Energetic Materials by N NQR and N NMR

Abstract

In this work, technical approaches for remote detection of explosives and energetic materials by 14N NQR and NMR are presented. In the case of 14N NQR, a problem of the detection of ammonium nitrate (AN) and AN-based explosives have been considered. Special accent is made on the technical solutions with use of cross-relaxation enhanced NQR. In the second part of the work, applications of N NMR (TD-NMR) for detection of hazardous liquids are discussed. A method of the fast discrimination of dangerous liquids by the low-field 14N NMR relaxation parameters have been proposed and tested using a set of energetic, toxic and electrolyte liquids. A surface coils for the detection of liquids in NMR is also studied. © 2020 Elsevier B.V., All rights reserved.