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'Double Resonance' in keywords Facet   Publication Year 1992  [X]
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1Author    R. Blinc, J. SeligerRequires cookie*
 Title    2 D Methods in NQR Spectroscopy  
 Abstract    The application of two-dimensional spectroscopy to nuclear quadrupole resonance (NQR) is reviewed with special emphasys on spin 3/2 nuclei. A new two-dimensional level crossing double resonance NQR nutation technique based on magnetic field cycling is described. This technique allows for a determination of both the electric quadrupole coupling constant and the asymmetry parameter for spin 3/2 nuclei in powdered samples even in cases where the quadrupolar signals are too weak to be observed directly. It works if the usual double resonance conditions are met, i.e. if the spin-lattice relaxation times are not too short if the quadrupolar nuclei are dipolarly coupled to "strong" nuclei. Variations of this techique can be also used for 2 D "exchange" NQR spectroscopy and NQR imaging. 
  Reference    Z. Naturforsch. 47a, 333—341 (1992); received July 27 1991 
  Published    1992 
  Keywords    2D methods, NQR spectroscopy, Double resonance 
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 TEI-XML for    default:Reihe_A/47/ZNA-1992-47a-0333.pdf 
 Identifier    ZNA-1992-47a-0333 
 Volume    47