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![[Figure 1]](nb5305fig1mag.jpg)
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Figure 1
A schematic of a typical LabDCT setup with one diffracted and one transmitted X-ray beam highlighted. The conical beam is confined by an aperture to avoid illumination of the whole detector with the direct beam. Some of the X-rays of a specific wavelength passing through the point M (xm, ym, zm) in the sample diffract, producing a spot on the detector at Q (Lsd, ydet, zdet). The laboratory coordinate system is defined with the intersection between the beam center and the sample rotational axis, O, as the origin. The x direction is defined as being parallel to the beam, the z direction as parallel to the sample rotation axis and the y direction as the cross product of these. The distance between the source and the sample, Lss, is not necessarily equal to the distance between the sample and the detector, Lsd, although it is the most common setup. |
![[Figure 1]](nb5305fig1.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
