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  2. Bragg's law - Wikipedia

    en.wikipedia.org/wiki/Bragg's_law

    This equation, Bragg's law, describes the condition on θ for constructive interference. [12] A map of the intensities of the scattered waves as a function of their angle is called a diffraction pattern. Strong intensities known as Bragg peaks are obtained in the diffraction pattern when the scattering angles satisfy Bragg condition.

  3. Wide-angle X-ray scattering - Wikipedia

    en.wikipedia.org/wiki/Wide-angle_X-ray_scattering

    In X-ray crystallography, wide-angle X-ray scattering (WAXS) or wide-angle X-ray diffraction (WAXD) is the analysis of Bragg peaks scattered to wide angles, which (by Bragg's law) are caused by sub-nanometer-sized structures. [1] It is an X-ray-diffraction [2] method and commonly used to determine a range of information about crystalline materials.

  4. Acousto-optic modulator - Wikipedia

    en.wikipedia.org/wiki/Acousto-optic_modulator

    When the incident light beam is at Bragg angle, a diffraction pattern emerges where an order of diffracted beam occurs at each angle θ that satisfies: [3] ⁡ = Here, m = ..., −2, −1, 0, +1, +2, ... is the order of diffraction, λ is the wavelength of light in vacuum, and Λ is the wavelength of the sound. [4]

  5. Scattering - Wikipedia

    en.wikipedia.org/wiki/Scattering

    Scattering also includes the interaction of billiard balls on a table, the Rutherford scattering (or angle change) of alpha particles by gold nuclei, the Bragg scattering (or diffraction) of electrons and X-rays by a cluster of atoms, and the inelastic scattering of a fission fragment as it traverses a thin foil.

  6. X-ray crystal truncation rod - Wikipedia

    en.wikipedia.org/wiki/X-ray_crystal_truncation_rod

    X-ray crystal truncation rod scattering is a powerful method in surface science, based on analysis of surface X-ray diffraction (SXRD) patterns from a crystalline surface. For an infinite crystal , the diffracted pattern is concentrated in Dirac delta function like Bragg peaks .

  7. iPhone 13 - Wikipedia

    en.wikipedia.org/wiki/IPhone_13

    The iPhone 13 and iPhone 13 Mini (stylized as iPhone 13 mini) are smartphones developed and marketed by Apple. They are the fifteenth generation of iPhones , succeeding the iPhone 12 and 12 Mini . They were unveiled at an Apple Event in Apple Park in Cupertino , California, on September 14, 2021, alongside the higher-priced iPhone 13 Pro and ...

  8. Backscatter - Wikipedia

    en.wikipedia.org/wiki/Backscatter

    Bragg diffraction from crystals, used in inelastic scattering experiments (neutron backscattering, X-ray backscattering spectroscopy); Compton scattering, used in Backscatter X-ray imaging. Stimulated backscatter, observed in non-linear optics, and described by a class of solutions to the three-wave equation.

  9. Transfer-matrix method (optics) - Wikipedia

    en.wikipedia.org/wiki/Transfer-matrix_method...

    Although the scattering length density profile is normally a continuously varying function, the interfacial structure can often be well approximated by a slab model in which layers of thickness (d n), scattering length density (ρ n) and roughness (σ n,n+1) are sandwiched between the super- and sub-phases. One then uses a refinement procedure ...