X-Ray Diffraction

330

Synchrotron Tomography

Figure 11.11         

sand and other particles. The image is clearly superimposed

with ring artifacts.

The cause of these artifacts is usually imperfect detector pixels

or impurities and scratches on the scintillator crystals. The common

        

Thereby, the measured data are corrected by dividing the normalized

radiographic images of the sample by background images (i.e., images

without sample). But due to the intensity-dependent nonlinear

response function of the detector and the scintillator ...