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Figure 3
Spectra from photosystem I (PS I+B2) as a function of incident intensity. In the low-energy region the black body radiation will be strongly affected by an increase in the number of photons hitting the sample. At higher intensities the overall strength of the hit increases, and new features like line-broadening will appear. The electron temperatures at the end of the pulse are 13 eV (for 2 × 1018 W cm−2), 28 eV (for 6 × 1018 W cm−2) and 71 eV (for 2 × 1019 W cm−2).

IUCrJ
Volume 4| Part 6| November 2017| Pages 778-784
ISSN: 2052-2525
https://doi.org/10.1107/S2052252517014154