On the Reconstruction of NQR Nutation Spectra in Solids with Powder Geometry
نویسندگان
چکیده
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namensnennung 4.0 Lizenz. On the Reconstruction of NQR Nutation Spectra in Solids with Powder Geometry
منابع مشابه
Influence of the rf Field Inhomogeneity on Nutation NQR Spectra of Spin 3/2 Nuclei in Powders
The influence of the rf field inhomogeneity on the NQR nutation spectra of spin / = 3/2 nuclei in powder samples is investigated. To eliminate the rf field inhomogeneity effects, a method of reconstruction of the NQR nutation spectra, based on finding the deconvolution of the Fourier nutation spectrum with a function of the rf field distribution, is used. The method is successfully demonstrated...
متن کاملRecording 2-D Nutation NQR Spectra by Random Sampling Method
The method of random sampling was introduced for the first time in the nutation nuclear quadrupole resonance (NQR) spectroscopy where the nutation spectra show characteristic singularities in the form of shoulders. The analytic formulae for complex two-dimensional (2-D) nutation NQR spectra (I = 3/2) were obtained and the condition for resolving the spectral singularities for small values of an...
متن کامل2D Off-Resonance Nutation NQR Spectroscopy of Spin 3/2 Nuclei*
The effects of off-resonance irradiation in nutation NQR experiments are demonstrated both experimentally and theoretically. The theoretical description of the off-resonance effects in 2D nutation NQR spectroscopy is given, and general exact formulas for the asymmetry parameter are obtained. It is shown that the outcome of the off-resonance nutation experiments depends on the data acquisition p...
متن کاملQuadrupole Nutation NMR in Solids *
The nutation frequency of a quadrupolar spin I depends on the quadrupole interaction. From nutation spectra, therefore, one obtains information about the direct surrounding of the atom. The theory of the straightforward and of more complicated nutation N M R experiments is outlined. Two applications of nutation N M R , to 2 3 Na in zeolites and A1 in alumina, are shown. In this way in CaO • 6 A...
متن کاملPowder Zeeman NQR Study on 123Sb in Sb(C6H5)3
Powder Zeeman NQR spectra of Sb in Sb(C6H5)3 were studied by means of a computer simulation and an experiment. TheSb nucleus has spin 7/2. There are two non-equivalentSb atoms in the crystal of Sb(C6H5)3, so that there are two series of three transition lines (higher series: 1h, 2h, 3h; lower series: 1l, 2l, 3l). The powder Zeeman spectra for 1h, based on the transition between the levels mI = ...
متن کامل