caa a22 4500 445381442 CHVBK 20180317143018.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0928-0 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0928-0 The Application of the Two Frequency Composite Pulses forNQRDetection of Nitrogen-Based Compounds [Elektronische Daten] [G. Mozzhukhin, B. Rameev, N. Doğan, B. Aktaş] Multifrequency 14N nuclear quadrupole resonance (NQR) signals induced due to irradiation by two-frequency composite pulses have been studied. The experiments have been performed on RDX explosive at room temperature. It has been shown that the NQR signal at the observed transition can be essentially enhanced by use of the two-frequency composite pulses. Moreover, it is possible to excite and maintain the precession signal at the third, nonirradiated frequency. We have also shown that the two-frequency composite pulse can be applied as the preparatory pulse for increasing the NQR signal in multipulse sequences. Springer Science+Business Media, LLC, 2010 NQR nationallicence Multifrequency resonance nationallicence Spin echoes nationallicence Composite pulses nationallicence Mozzhukhin G. Kazan Power State University, 420066, Kazan, Russia aut Rameev B. Kazan Physical-Technical Institute, 420029, Kazan, Russia aut Doğan N. Gebze Institute of Technology, 41400, Gebze-Kocaeli, Turkey aut Aktaş B. Gebze Institute of Technology, 41400, Gebze-Kocaeli, Turkey aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 653-658 1557-1939 24:1-2<653 2011 24 10948 https://doi.org/10.1007/s10948-010-0928-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0928-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mozzhukhin G. Kazan Power State University, 420066, Kazan, Russia aut NATIONALLICENCE 700 1- Rameev B. Kazan Physical-Technical Institute, 420029, Kazan, Russia aut NATIONALLICENCE 700 1- Doğan N. Gebze Institute of Technology, 41400, Gebze-Kocaeli, Turkey aut NATIONALLICENCE 700 1- Aktaş B. Gebze Institute of Technology, 41400, Gebze-Kocaeli, Turkey aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 653-658 1557-1939 24:1-2<653 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer