Issues »  Volume 36, Issue 7

The Phenomenon of Intensification (by Several Orders of Magnitude) Defects’ Manifestation in the Multiple-Scattering Pattern and Its Dispersive Nature

V. V. Lizunov, V. B. Molodkin, S. V. Lizunova, M. G. Tolmachyov, O. S. Skakunova, S. V. Dmitriev, B. V. Sheludchenko, S. M. Brovchuk, L. M. Skapa, R. V. Lekhnyak, K. V. Fuzik

G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03680 Kyiv-142, Ukraine

Received: 04.06.2014. Download: PDF

The phenomenon of intensification (by several orders of magnitude) of defects’ manifestation in statistical multiple-scattering pattern is discovered, quantitatively substantiated and discussed. Dispersive nature of this phenomenon is established. As shown, there is a new mechanism of influence of distortions on the wave vectors of scattered waves rather than on amplitudes in case of multiple (dynamical) scattering (as opposed to traditionally used kinematical theory, i.e. within the approximation of single scattering). Firstly, this mechanism is exponentially more essential because of defects’ influences on the power exponent directly (i.e. on the wave-function phase), and, secondly, the character of such defect influence is controllable by diffraction conditions (wavelength, object thickness, geometry and angles of diffraction, etc.). As a result, discovered phenomenon and its dispersive nature allow authors to extend essentially functional capabilities of diagnostics and devise a set of new methods, which increase sensitivity of diagnostics and solve the problem of unambiguous diagnostics of multiparameter systems, using the combination of multiple-scattering-pattern measurements in different diffraction cases.

Key words: dynamical diffraction, dispersion mechanism, microdefects.

URL: http://mfint.imp.kiev.ua/en/abstract/v36/i07/0857.html

DOI: https://doi.org/10.15407/mfint.36.07.0857

PACS: 07.85.Jy, 61.05.cc, 61.05.cf, 61.05.cp, 61.72.Dd, 61.72.Lk

Citation: V. V. Lizunov, V. B. Molodkin, S. V. Lizunova, M. G. Tolmachyov, O. S. Skakunova, S. V. Dmitriev, B. V. Sheludchenko, S. M. Brovchuk, L. M. Skapa, R. V. Lekhnyak, and K. V. Fuzik, The Phenomenon of Intensification (by Several Orders of Magnitude) Defects’ Manifestation in the Multiple-Scattering Pattern and Its Dispersive Nature, Metallofiz. Noveishie Tekhnol., 36, No. 7: 857—870 (2014) (in Russian)

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