Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleBeam Focusing upon the Reflection from Crystals and Multilayer Periodic Structures with Variable Period.AuthorsAndreev, A. V.AbstractThe focusing properties of crystals and multilayer structures with variable period are demonstrated for the symmetric and asymmetrical Bragg reflection geometries. The focusing efficiency is examined. © 2001 MAIK “Nauka / Interperiodica”.SubjectsCRYSTALS; GEOMETRY; REFLECTANCEPublicationJETP Letters, 2001, Vol 74, Issue 1, p6ISSN0021-3640Publication typeArticleDOI10.1134/1.1402196