Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions

Samila, Andrii; Hotra, Oleksandra; Moisiuk, Oleksandr; Khobzei, Mykola; Kazemirskiy, Taras

doi:10.3390/en15197348

Open AccessArticle

Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions

by

Andrii Samila

¹

,

Oleksandra Hotra

^2,*

,

Oleksandr Moisiuk

¹,

Mykola Khobzei

¹ and

Taras Kazemirskiy

¹

Department of Radio Engineering and Information Security, Yuriy Fedkovych Chernivtsi National University, Kotsyubynsky 2, 58002 Chernivtsi, Ukraine

²

Department of Electronics and Information Technology, Lublin University of Technology, Nadbystrzycka 38D, 20-618 Lublin, Poland

^*

Author to whom correspondence should be addressed.

Energies 2022, 15(19), 7348; https://doi.org/10.3390/en15197348

Submission received: 3 September 2022 / Revised: 23 September 2022 / Accepted: 5 October 2022 / Published: 6 October 2022

(This article belongs to the Section F: Electrical Engineering)

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Abstract

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.

Keywords: nuclear quadrupole resonance; spiral antenna; Fermat spiral; magnetic field decay; simulation

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MDPI and ACS Style

Samila, A.; Hotra, O.; Moisiuk, O.; Khobzei, M.; Kazemirskiy, T. Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions. Energies 2022, 15, 7348. https://doi.org/10.3390/en15197348

AMA Style

Samila A, Hotra O, Moisiuk O, Khobzei M, Kazemirskiy T. Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions. Energies. 2022; 15(19):7348. https://doi.org/10.3390/en15197348

Chicago/Turabian Style

Samila, Andrii, Oleksandra Hotra, Oleksandr Moisiuk, Mykola Khobzei, and Taras Kazemirskiy. 2022. "Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions" Energies 15, no. 19: 7348. https://doi.org/10.3390/en15197348

APA Style

Samila, A., Hotra, O., Moisiuk, O., Khobzei, M., & Kazemirskiy, T. (2022). Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions. Energies, 15(19), 7348. https://doi.org/10.3390/en15197348

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions

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