Search Results - "Levonyan, L. V."

Features of Spherical X-Ray Wave Diffraction by a Low Angle Twist Boundary Perpendicular to the Crystal Surface by Levonyan, L. V., Manukyan, H. M.

“…An X-ray point source was used to examine the diffraction behavior of a low-angle twist boundary. It is shown that when radiation is focused inside a crystal,…”
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Influence of Interdiffusion of Heteromaterials on the Diffraction Focusing of Spherical X-Ray Wave in a Superlattice by Levonyan, L. V., Manukyan, H. M.

“…The influence of interdiffusion of heteromaterials on the diffraction focusing of spherical X-ray wave in a superlattice is investigated. It is shown that in…”
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X-ray Phase Contrast at Diffraction Focusing of a Spherical Wave in a Short-Period Superlattice by Levonyan, L. V., Manukyan, H. M.

“…The possibility of reconstructing the internal structure of one-dimensional phase objects at diffraction focusing of X-ray spherical wave was investigated. As…”
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Gastric cancer: modern approaches and prospects of treatment for peritoneal carcinomatosis (literature review) by Markovich, V. A., Tuzikov, S. A., Rodionov, E. O., Litvyakov, N. V., Popova, N. O., Tsyganov, M. M., Levonyan, L. V., Miller, S. V., Podolko, D. V., Tsydenova, I. A., Ibragimova, M. K.

“…Gastric cancer (gc) is one of the most common cancers worldwide. The majority of newly diagnosed gastric cancer cases present with distant metastases…”
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Dynamical diffraction of spherical X-ray wave on a superlattice by Levonyan, L. V., Manukyan, H. M.

“…It was shown that at the dynamical diffraction of spherical X-ray wave on a short period superlattice, a focusing of satellites occurred both at different…”
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Specific features of two diffraction schemes for a widely divergent X-ray beam by Avetyan, K. T., Levonyan, L. V., Semerjian, H. S., Arakelyan, M. M., Badalyan, O. M.

“…We investigated the specific features of two diffraction schemes for a widely divergent X-ray beam that use a circular diaphragm 30–50 μm in diameter as a…”
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Investigation of the internal structure of noncrystalline weakly absorbing objects by X-ray scattering by Avetyan, K. T., Levonyan, L. V., Semerdzhyan, O. S., Arakelyan, M. M., Badalyan, O. M.

“…A new method of studying the structure of noncrystalline objects based on recording X-rays scattered from the object has been developed. It is established that…”
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Scattering contrast of X-ray radiation by Avetyan, K. T., Levonyan, L. V., Semerjyan, H. S., Badalyan, O. M.

“…It is experimentally established that, in the majority of cases, the X-ray radiation scattered on different constituent parts of a weakly absorbing object…”
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Two diffraction schemes for widely divergent beam of X-ray radiation by Avetyan, K. T., Levonyan, L. V., Semerjyan, H. S., Arakelyan, M. M., Badalyan, O. M., Zeynalyan, D. A.

“…Peculiarities of two diffraction schemes: d-c (diaphragm-crystal) and c-d (crystaldiaphragm) for widely divergent beam of X-ray radiation are considered. It is…”
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X-ray diffraction pattern of a Gulyaev-Bleustein surface acoustic wave in grazing geometry by Levonyan, L. V., Khachaturyan, G. K.

“…The X ray diffraction pattern of a Gulyaev-Bleustein surface acoustic wave (SAW) under grazing angles of incidence in noncoplanar symmetric Laue geometry has…”
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Peculiarities of the formation of the X-ray diffraction image of a surface acoustic wave in grazing geometry by Levonyan, L. V., Khachaturyan, G. K.

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The features of identifying lines in a diffraction image formed by a widely divergent X-ray beam by Avetyan, K. T., Levonyan, L. V., Arakelyan, M. M., Semerjian, H. S., Grigoryan, P. A., Hovhannisyan, G. M.

“…A method for identifying lines in a diffraction image formed by a widely divergent X-ray beam and a technique for measuring the crystal structure parameters in…”
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Magnification at diffraction of widely divergent beam of X-ray radiation by Avetyan, K. T., Levonyan, L. V., Arakelyan, M. M., Semerjyan, O. S., Grigoryan, P. A., Badalian, O. M.

“…A new technique for realization of diffraction of a widely divergent beam of characteristic X-ray radiation in crystals is developed. It is shown that the…”
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Study of X-ray diffraction from a surface acoustic wave in the grazing geometry with allowance for the curvature of the unperturbed crystal surface by Mkrtchyan, A. R., Kocharyan, V. R., Levonyan, L. V., Khachaturyan, G. K.

“…Fresnel X-ray diffraction from a concave crystal surface in the presence of a surface acoustic wave (SAW) has been considered for grazing angles of incidence…”
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