Chemistry Reference
In-Depth Information
FIGURE 9.12 The simulated diffraction ring distortion due to stresses in radar chart (top) and
2u versus g plot (bottom).
are twice the values of 180
2u for backward reflection (2u
90
). In other words,
if a flat detector is positioned at the backward diffraction position with a swing angle
a¼180
, the X-ray beam reaches the sample through the detector. The center of the
detector represents 2u¼180
and the pixel away from the center represents a 2u angle
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