منابع مشابه
Are Bragg Peaks Gaussian?
It is common practice to assume that Bragg scattering peaks have Gaussian shape. The Gaussian shape function is used to perform most instrumental smearing corrections. Using Monte Carlo ray tracing simulation, the resolution of a realistic small-angle neutron scattering (SANS) instrument is generated reliably. Including a single-crystal sample with large d-spacing, Bragg peaks are produced. Bra...
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Bragg peaks in point set diffraction show up as eigenvalues of a dynamical system. Topological Bragg peaks arrise from topological eigenvalues and determine the torus parametrisation of the point set. We will discuss how qualitative properties of the torus parametrisation characterise the point set.
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متن کاملContinuity of Eigenfunctions of Uniquely Ergodic Dynamical Systems and Intensity of Bragg Peaks
We study uniquely ergodic dynamical systems over locally compact, sigmacompact Abelian groups. We characterize uniform convergence in Wiener/Wintner type ergodic theorems in terms of continuity of the limit. Our results generalize and unify earlier results of Robinson and Assani respectively. We then turn to diffraction of quasicrystals and show how the Bragg peaks can be calculated via a Wiene...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2003
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(03)00635-7