caa a22 4500 605545766 CHVBK 20210128100937.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00723-014-0623-6 doi (NATIONALLICENCE)springer-10.1007/s00723-014-0623-6 Remote Detection of Ammonium Nitrate by Nuclear Quadrupole Resonance using a Portable System [Elektronische Daten] [Lorena Cardona, Yuji Miyato, Hideo Itozaki, Jovani Jiménez, Nelson Vanegas, Hideo Sato-Akaba] This paper shows the advances in the development of a portable system for remote detection of ammonium nitrate by nuclear quadrupole resonance. Three different probe coils were constructed and compared in terms of the signal intensity and the noise rejection under different environments, using the developed system. For the gradiometer probe coil, which showed the best performance in terms of noise rejection, the ‘90°' equivalent pulse was determined for different distances between the sample and the probe, and the remote detection of ammonium nitrate was achieved not only in a shielded room inside the laboratory, but also in the outdoors. The system was capable of detecting 200g ammonium nitrate at 3cm apart from the probe within 12s with a steady-state free precession pulse sequence. The comparable results were obtained with a free induction decay sequence in 25min for the total acquisition time. The compact size of the system will allow the applications for the substance detection in the outdoors especially for landmines made from ammonium nitrate and fuel oil mixtures instead of military explosives. Springer-Verlag Wien, 2015 Cardona Lorena Department of Computation and Decision Science, School of Mines, National University of Colombia, Carrera 80 No. 65-223, Medellin, Antioquia, Colombia aut Miyato Yuji Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560-8531, Toyonaka, Osaka, Japan aut Itozaki Hideo Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560-8531, Toyonaka, Osaka, Japan aut Jiménez Jovani Department of Computation and Decision Science, School of Mines, National University of Colombia, Carrera 80 No. 65-223, Medellin, Antioquia, Colombia aut Vanegas Nelson Department of Mechanical Engineering, School of Mines, National University of Colombia, Carrera 64 No. 63-120, Medellin, Antioquia, Colombia aut Sato-Akaba Hideo Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560-8531, Toyonaka, Osaka, Japan aut Applied Magnetic Resonance Springer Vienna 46/3(2015-03-01), 295-307 0937-9347 46:3<295 2015 46 723 https://doi.org/10.1007/s00723-014-0623-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00723-014-0623-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cardona Lorena Department of Computation and Decision Science, School of Mines, National University of Colombia, Carrera 80 No. 65-223, Medellin, Antioquia, Colombia aut NATIONALLICENCE 700 1- Miyato Yuji Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560-8531, Toyonaka, Osaka, Japan aut NATIONALLICENCE 700 1- Itozaki Hideo Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560-8531, Toyonaka, Osaka, Japan aut NATIONALLICENCE 700 1- Jiménez Jovani Department of Computation and Decision Science, School of Mines, National University of Colombia, Carrera 80 No. 65-223, Medellin, Antioquia, Colombia aut NATIONALLICENCE 700 1- Vanegas Nelson Department of Mechanical Engineering, School of Mines, National University of Colombia, Carrera 64 No. 63-120, Medellin, Antioquia, Colombia aut NATIONALLICENCE 700 1- Sato-Akaba Hideo Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560-8531, Toyonaka, Osaka, Japan aut NATIONALLICENCE 773 0- Applied Magnetic Resonance Springer Vienna 46/3(2015-03-01), 295-307 0937-9347 46:3<295 2015 46 723