Geodesic
Comparative analysis of two diffraction schemes for widely divergent beam of $\mathrm{X}$-ray radiation
Proceedings of the Yerevan State University. Physical and mathematical sciences, Tome 51 (2017) no. 1, pp. 81-84.

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Comparative analysis of two diffraction schemes $d-c$ (diaphragm-crystal) and $c-d$ (crystal-diaphragm) for widely divergent beam of $\mathrm{X}$-ray radiation is conducted. It is justified that in $c-d$ scheme the diffraction image is a topographic map of the studied area of the crystal.
Keywords: $\mathrm{X}$-ray radiation, widely divergent beam, topographic map.
Mots-clés : diffraction scheme 
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K. T. Avetyan; L. V. Levonyan; H. S. Semerjyan. Comparative analysis of two diffraction schemes for widely divergent beam of $\mathrm{X}$-ray radiation. Proceedings of the Yerevan State University. Physical and mathematical sciences, Tome 51 (2017) no. 1, pp. 81-84. http://geodesic.mathdoc.fr/item/UZERU_2017_51_1_a13/

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