Laue diagrams

Figure 13b. x-Ray characterization of POM. Key top, Laue diagram bottom left, morphology and bottom right, Lambot method compared to a simitar sample of Sifor which the penetration depth is smaller. 

Laue diagram - A diffraction pattern produced when an x-ray beam passes through a thin slice of a crystal and impinges on a detector behind the crystal. 

Such femto- to attosecond X-ray pulses can be used for the generation of Laue diagrams of vibrational or electronical excited molecules. The exposure time must... 

It may be added that the Laue-diagram affords the third possibility,... 

The X-ray analysis of crystals. Current Science (Special Number on Laue Diagrams ) (Jan 1937) 20-22. 

Figure 8.15 (a) Diagram showing the splitting of the cry stal into perfect material above and below the defect and distorted material close to it. (b) Integrated intensity— Laue case (c) Integrated intensity— Bragg case... 

Figure 3.12. Facing page, (a) Diagram showing the Ewald sphere cutting the reciprocal lattice rods of zero and higher order Laue zones and (b) a schematic diagram of the corresponding diffraction pattern.

If the construction is now performed taking into account the mean inner potential of the crystal, then the center Q of the sphere is determined such that the magnitude of the wavevectors to 0(000) and to G khl) is K. It can be seen from Eq. (4.15) that K>k, so the point Q is somewhere to the left of the Laue point L in Figure 4.1. The Ewald sphere construction with Q as center and radius K is shown in Figure 4.2. The diagram also includes the point L, but the distance between Q and L has been greatly... 

Figure 4.7. Vector diagram showing the directions of n, g. So, and Sg for the symmetrical Laue case.

Fig. la. Laue diffraction geometry showing the accessible region of reciprocal space between the Ewald spheres associated with and and the sample resolution limited d . O is the origin of of reciprocal space, b. A ray with n orders inside the d in sphere can have a recorded multiplicity m < n where (n — m) RLPs are outside the accessible region. The diagram shows the case of n = 5 and m = 2. Only the upper section of the volume of resolution of the accessible region is shown. (From [9])... 

Figure 2. X-ray standing wave field formed in a crystal and above its surface by the interference of incident and Bragg-diffracted monochromatic X-ray plane waves. The inset shows the reciprocal space diagram for the Laue condition described by Equation (4).

Fig. 4. Schematic diagram of the D11 small angle neutron difFiactometer at the Institut Laue-Langevin...

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