Nuclear Quadrupole Resonance
Nuclear quadrupole resonance spectroscopy or NQR is a chemical analysis technique related to nuclear magnetic resonance (NMR). Unlike NMR, NQR transitions of nuclei can be detected in the absence of a magnetic field, and for this reason NQR spectroscopy is referred to as "zero Field NMR." The NQR resonance is mediated by the interaction of the electric field gradient (EFG) with the quadrupole moment of the nuclear charge distribution. Because the EFG at the location of a nucleus in a given substance is determined primarily by the valence electrons involved in the particular bond with other nearby nuclei, the NQR frequency at which transitions occur is unique for a given substance. A particular NQR frequency in a compound or crystal is proportional to the product of the nuclear quadrupole moment, a property of the nucleus, and the EFG in the neighborhood of the nucleus. It is this product which is termed the nuclear quadrupole coupling constant for a given isotope in a material and can be found in tables of known NQR transitions.

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Nuclear quadrupole resonance - Wikipedia, the free encyclopedia
Nuclear Quadrupole Resonance spectroscopy or NQR is a chemical analysis technique related to nuclear magnetic resonance (NMR). Unlike NMR, NQR ...
en.wikipedia.org/wiki/Nuclear_quadrupole_resonance
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Explosives Detection with Nuclear Quadrupole Resonance ...
The phenomenon of Nuclear Quadrupole Resonance is akin to nuclear magnetic resonance, which is the basis of magnetic-resonance imaging. But unlike MRI ...
www.americanscientist.org/issues/page2/explosives-detection-with-nuclear-quadrupole-resonance
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CHAPTER 2 NUCLEAR QUADRUPOLE RESONANCE ... - Springer
Nuclear Quadrupole Resonance (NQR) uses radio-frequency (RF) magnetic fields to induce and detect transitions between sublevels of a nuclear ground.
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UU/IT/Nuclear Quadrupole Resonance, NQR
Nuclear Quadrupole Resonance (NQR) is a radio frequency (RF) technique offering an unequivocal method of detecting the presence of the nitrogen isotope ...
www.it.uu.se/research/syscon/signalprocessing/topics/NQR
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Free Magnetic Induction in Nuclear Quadrupole Resonance
The free precession of an ensemble of nuclear quadrupole moments in an axial electric field gradient is studied by the pulsed nuclear induction method.
link.aps.org/doi/10.1103/PhysRev.97.1699
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Nuclear Quadrupole Resonance for explosive detection
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www.s2is.org/Issues/v1/n3/papers/paper8.pdf
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NQR - Physics
Nuclear Quadrupole Resonance is very similar to Nuclear Magnetic Resonance ( NMR) except that the nuclear energy level splittings are due to electric field ...
www.phy.mtu.edu/~suits/NQR.html
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Nuclear Quadrupole Resonance - Eudem
Nuclear Quadrupole Resonance (Research & Development Emerging Sensor Technologies). Nuclear Quadrupole Resonance (NQR), a derivative of NMR, is a ...
www.eudem.vub.ac.be/technologies/technology.asp?tech_id=29
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Nitrogen-14 nuclear quadrupole resonance spectroscopy: a ...
Feb 20, 2013 ... Nitrogen-14 Nuclear Quadrupole Resonance spectroscopy: a promising analytical methodology for medicines authentication and counterfeit ...
www.ncbi.nlm.nih.gov/pubmed/23384229
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Nuclear Quadrupole Resonance - Wiki Against Mines
Jul 27, 2009 ... Methods being explored for this purpose include Nuclear Quadrupole Resonance ( NQR) and a variety of methods that use the interaction of ...
www.wiki-against-mines.org/index.php/Nuclear_Quadrupole_Resonance
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Nuclear Quadrupole Resonance in science
Magnetic Resonance Laboratory - Presentations
Jul 17, 2012 ... K.L. Sauer, Advances in Nuclear Quadrupole Resonance, invited talk for the Physics Colloquium of the University of Missouri, St. Louis, ...
[PDF]High Sensitivity Nuclear Quadrupole Resonance of Light ... - ISMAR
Oxford University. Oxford, England. I. WHAT IS NQR? Nuclear Quadrupole Resonance (NQR) is the study of the energy splittings due to interaction of the elec-.
Nuclear quadrupole resonance - Wikipedia, the free encyclopedia
For the Tufts University tradition, see Naked Quad Run. Nuclear Quadrupole Resonance spectroscopy or NQR is a chemical analysis technique related to nuclear ...
Nuclear Quadrupole Resonance Spectroscopy - Chemical ...
May 28, 2013 ... LibGuides. Chemical Engineering and Analytical Science. Nuclear Quadrupole Resonance Spectroscopy.
Robust Multichannel Detection of Mixtures Using Nuclear ...
Abstract English, Nuclear Quadrupole Resonance (NQR) is a radio-frequency (RF) spectroscopic technique, able to detect the presence of many high explosives ...
Frequency Selective Detection of Nuclear Quadrupole Resonance ...
Title, Frequency Selective Detection of Nuclear Quadrupole Resonance (NQR) Spin Echoes. Author/s, Samuel Somasundaram, Andreas Jakobsson, John Smith ...
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UU/IT/Nuclear Quadrupole Resonance, NQR
Nuclear Quadrupole Resonance (NQR) is a radio frequency (RF) technique offering an unequivocal method of detecting the presence of the nitrogen isotope ...
[PDF]A NUCLEAR QUADRUPOLE RESONANCE SPECTBOHETER by ...
A Nuclear Quadrupole Resonance SPECTBOHETER by. BEVERLEY1. JOAN FULTON. B.A., University of British Columbia. A Thesis submitted la ...
[PDF]NUCLEAR QUADRUPOLE RESONANCE IN SOLIDS *
Dept. of Physics, Duke University, Durham, NC, U.S.A.. Received 8112 February, 1955. Nuclear Quadrupole Resonance—also called pure electric quadrupole ...
Books on the term Nuclear Quadrupole Resonance
Nuclear quadrupole resonance spectroscopy data
Nuclear quadrupole resonance spectroscopy data
H. Chihara, Nabuo Nakamura, Karl-Heinz Hellwege, 1993
Volume III/31 continues the compilation of Nuclear Quadrupole Resonance spectroscopy data of solid substances which started in with volume III/20 in1987 covering the literature from the beginning of Nuclear Quadrupole Resonance spectroscopy ...
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