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Wyniki wyszukiwania dla: RÓWNANIE HELMHOLTZA

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Wyniki wyszukiwania dla: RÓWNANIE HELMHOLTZA

  • Data obtained by computation for X-ray focusing using oriented Gaussian beams

    Dane Badawcze
    open access

    The propagation of X-ray waves through an optical system consisting of several X-ray refractive lenses is considered. Gaussian beams are exact solutions of the paraxial equation. The Helmholtz equation describes the propagation of a monochromatic electromagnetic wave. Since the widths of the beams are much larger than the wavelength of X-rays, Gaussian...

  • XPS data of deuterium and hydrogen grown boron-doped diamond

    Dane Badawcze
    open access

    The high-resolution C1s X-ray absorption spectra of BDD@H and BDD@D samples were measured using the facilities of the HE-SGM beamline (HE-SGM) at the BESSY II synchrotron radiation source of Helmholtz–Zentrum Berlin (HZB).[90] The measurements were carried out under ultra-high vacuum conditions: P ≈ 2×10−9 Torr at T = 300 K. The NEXAFS spectra were...