| dc.contributor.author | Samila, Andriy | |
| dc.contributor.author | Hotra, Oleksandra | |
| dc.date.accessioned | 2021-06-16T10:55:41Z | |
| dc.date.available | 2021-06-16T10:55:41Z | |
| dc.date.issued | 2020-11-25 | |
| dc.identifier.citation | Samila A., Hotra O. A Low-Cost Digital Pulsed Coherent Spectrometer for Investigation of NQR in Layered Semiconductor GaSe and InSe Crystals. Electronics. 2020. Vol. 9, Issue 12. Р. 1996-1-12. | uk_UA |
| dc.identifier.issn | 2079-9292 | |
| dc.identifier.uri | https://archer.chnu.edu.ua/xmlui/handle/123456789/61 | |
| dc.description.abstract | A low-cost digital pulsed nuclear quadrupole resonance (NQR) radio-spectrometer is
proposed, all main modules of digital processing and synthesis of which on the field-programmable
gate array (FPGA) are implemented. The input sensitivity of the device is of the order of 3 uV to 5 uV
which allows conducting NQR studies in samples of relatively small dimensions. The application
of the developed methods of NQR pulsed radio spectroscopy made it possible to increase spectral
resolution, improve spectral shape and significantly reduce the time of research. In the case of studying
InSe and GaSe crystals, spectra with signal-to-noise ratio (SNR) values of 41.9 dB were observed in
samples with a volume of 0.1 cm3. As the results of the research have shown, the characteristics of
the proposed spectrometer make it effective when used to observe free induction decay (FID) signals
of a significant number of isotopes of elements with quadrupolar nuclei. | uk_UA |
| dc.description.sponsorship | Радіотехніки та інформаційної безпеки | uk_UA |
| dc.language.iso | en | uk_UA |
| dc.publisher | MDPI | uk_UA |
| dc.relation.ispartofseries | Electronics;9(12) | |
| dc.subject | nuclear quadrupole resonance | uk_UA |
| dc.subject | gated preamplifier | |
| dc.subject | FPGA | |
| dc.subject | carrier suppression | |
| dc.subject | semiconductor | |
| dc.subject | InSe | |
| dc.subject | GaSe | |
| dc.title | A Low-Cost Digital Pulsed Coherent Spectrometer for Investigation of NQR in Layered Semiconductor GaSe and InSe Crystals | uk_UA |
| dc.type | Article | uk_UA |
