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A new method of correction of X-ray powder diffraction line profiles by deconvolution is being developed. The convolution equation, representing the phenomenon of deformation of a true diffraction line profile, is approached with the help of a quadrature formula by a system of linear equations....
An attempt is made to show that the Q-functions Tollin, Acta Cryst. (1966). 21, 613 and the translation function Crowther & Blow, Acta Cryst. (1967). 23, 544 are virtually identical, and the modifications to the translation function proposed by Crowther & Blow are discussed.
The numerical method of deconvolution described in part I is applied to a study of a broadening factor of the diffractometer: the receiving slit. By considering this factor the validity of this direct method of deconvolution, which can also be applied to analytical profiles and to experimental...
It is shown that the real one-dimensional irreducible representations of a crystallographic point group induce the magnetic symmetry groups associated with the point group and also give the number of independent non-vanishing constants required to describe any magnetic property for the induced...
Space groups having the same translation subgroup and the same point group form an Abelian finite group. This property is used to simplify the construction of space groups. The case of magnetic groups is examined too, and the results are interpreted in Fourier space.
A simple method is outlined for finding the arrangement of lattice points in a lattice plane of given Miller indices, and for determining the stacking properties of such planes.
A simple calculation shows that the experimentally determined electron density in the bifluoride ion is not incompatible with a theoretical model having a charge of + 1/2 on the hydrogen atom, as was previously believed.
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