Comparative analysis of two diffraction schemes d−c (diaphragm-crystal) and c−d (crystal-diaphragm) for widely divergent beam of 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.
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                    Nuclear Physics                
                        , 2025, Issue 1, pp. 1–10
        
        
        
            ISSN Online: 0000-0000
        
        
        
            DOI:
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