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Topography
Lang, A. R.  International Tables for Crystallography (2006). Vol. C, ch. 2.7, pp. 113-123 [ doi:10.1107/97809553602060000582 ]
... at will for these rays to produce an image of a surface bounding the crystal, or of a thin slice cutting through the crystal, or of the projection of a selected volume of the crystal. The majority of present- ...

Moiré topography
Lang, A. R.  International Tables for Crystallography (2006). Vol. C, Section 2.7.5.1, pp. 121-122 [ doi:10.1107/97809553602060000582 ]
... 2), whose reciprocal vectors are and , so as to form a moiré pattern. Then, the reciprocal vector of the moiré fringes ... cases are the `rotation' moiré pattern in which , but makes a small angle [alpha] with . Then, the spacing of the ... compression' moiré pattern. Here, and are parallel but there is a small difference between their corresponding spacings, and . The ...
     [more results from section 2.7.5 in volume C]

Incident-beam monochromatization
Lang, A. R.  International Tables for Crystallography (2006). Vol. C, Section 2.7.4.2, pp. 120-121 [ doi:10.1107/97809553602060000582 ]
... for simpler monochromatization systems, one possibility is to set up a monochromator crystal oriented for Bragg reflection with asymmetry (i.e. giving to produce a narrow monochromatic beam with which section topographs can be taken (Mai, Mardix & Lang, 1980). The standard double-crystal topography arrangement is ...
     [more results from section 2.7.4 in volume C]

Double-crystal topography
Lang, A. R.  International Tables for Crystallography (2006). Vol. C, Section 2.7.3, pp. 117-119 [ doi:10.1107/97809553602060000582 ]
... suggests turning to prior reflection of the incident beam by a perfect crystal as a means of meeting these needs. Moreover, the application of crystal ... from the vicinity of an individual lattice defect such as a dislocation brings possibilities of new measurements beyond the scope ...

Transmission topographs
Lang, A. R.  International Tables for Crystallography (2006). Vol. C, Section 2.7.2.2, pp. 115-117 [ doi:10.1107/97809553602060000582 ]
... arrangement shown in Fig. 2.7.1.2. (In this case, S was a 0.3mm diameter pinhole placed in front of the window of a W-target X-ray tube so as to form a point source of diverging continuous radiation.) Ramachandran adopted a ...
     [more results from section 2.7.2 in volume C]

Principles
Lang, A. R.  International Tables for Crystallography (2006). Vol. C, Section 2.7.1, pp. 113-114 [ doi:10.1107/97809553602060000582 ]
... at will for these rays to produce an image of a surface bounding the crystal, or of a thin slice cutting through the crystal, or of the projection of a selected volume of the crystal. The majority of present- ...

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