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![[Figure 4]](vb5075fig4mag.jpg)
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Figure 4
Data representation based on 31 000 diffraction images, showing the evolution of sample compression including NaCl, Pt and MgO. (a) A heatmap representing the data with indication of the individual diffraction lines. The pressure at the start of oscillations in this experiment was around 5 GPa, with pressure cycling amplitudes estimated as 0.5–1 GPa. The pressure oscillations are most clearly observed in the NaCl diffraction lines. A slight increase in pressure, on top of the pressure oscillations, is observed throughout the experiment, and this should be attributed to a deformation of the DAC gasket material yielding to the conditions of cycling stress. (b) A magnification of selected 2θ ranges to illustrate the cycling of reflection positions between images 1000–2000. (Image provided by Biao Wang, University of Oxford.) |
![[Figure 4]](vb5075fig4.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
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