The effect of electron irradiation (E up to 10 MeV) on the phase composition, structure, and corrosion resistance of synthesized fluorapatite was investigated in the study. Powders of calcium Ca₁₀(PO₄)₆F₂ and strontium-containing ...

We offer a review of present day state of an approach to constructing of the theory of wave diffraction by multi-layered periodic partially transparent screens. A key point of the approach is definition and using of an ...