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![[Figure 4]](hat5019fig4mag.jpg)
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Figure 4
Integrated intensity depending on time and dose. (a) The fraction of integrated peak intensities of the β and α peaks as a function of time since the start of H2 exposure. t = 0 shows the measurement before exposure. The A areas, measured with a high repetition rate, show an accelerated phase transition and less plateau within the timeframe compared with area B, which is measured at a lower repetition rate. (b) The fraction of integrated peak intensities, now shown as a function of accumulated X-ray dose. Accumulated dose is calculated as the cumulative sum of the constant dose delivered per scan. If the phase transition were purely beam driven, the trajectories for the area types (A, B and C) would collapse when plotted versus dose. Instead, differences remain between the measurement protocols, indicating a contribution from H2-induced phase transition, independent of beam exposure. |
![[Figure 4]](hat5019fig4.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
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