Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions
Artykuł w czasopiśmie
MNiSW
140
Lista 2021
Status: | |
Autorzy: | Samila Andriy, Hotra Oleksandra, Moisiuk Oleksandr, Khobzei Mykola, Kazemirskiy Taras |
Dyscypliny: | |
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Rok wydania: | 2022 |
Wersja dokumentu: | Drukowana | Elektroniczna |
Język: | angielski |
Numer czasopisma: | 19 |
Wolumen/Tom: | 15 |
Numer artykułu: | 7348 |
Strony: | 1 - 12 |
Impact Factor: | 3,2 |
Web of Science® Times Cited: | 1 |
Scopus® Cytowania: | 3 |
Bazy: | Web of Science | Scopus |
Efekt badań statutowych | NIE |
Finansowanie: | This research was supported by the Lublin University of Technology, grant number: FD-20/EE-2/306. |
Materiał konferencyjny: | NIE |
Publikacja OA: | TAK |
Licencja: | |
Sposób udostępnienia: | Witryna wydawcy |
Wersja tekstu: | Ostateczna wersja opublikowana |
Czas opublikowania: | W momencie opublikowania |
Data opublikowania w OA: | 6 grudnia 2022 |
Abstrakty: | angielski |
This paper presents the conceptual stages of the simulation and development of a modified transceiver antenna for a high-power pulsed nuclear quadrupole resonance (NQR) detector of explosives containing the 14N isotope. At a frequency of 4.645 MHz, better characteristics are obtained using a nine-turn coil shaped as half of a Fermat spiral with an outer radius of 75 mm. Using a COMSOL Multiphysics numerical parametric simulation and a materials browser, it was possible to calculate a physical system with parameters as close to reality as possible. According to the results of the experimental studies of the radio frequency (RF) energy, the proposed antenna features an increase in the working area compared to a similar antenna, the topology of the conductive coil of which has the form of an Archimedean spiral. The resulting diagrams of the distribution of the magnetic induction also indicate that the topology of the electromagnetic (EM) field does not depend on the orientation of the sample under study relative to the axis of the radial symmetry observed in square–rectangular planar antennas. |