view article
Figure 2
(a) Full spectra for the four different samples. The largest difference can be seen for lysozyme (Lys+B1) and buffer (B1), due to the strong chloride buffer that creates the largest difference from pure water at energies [\gt]2.5 keV. At around 2.3 keV the sulfur, only present in photosystem I (PS I+B2), gives a signal while neither water nor buffer B1 emits anything. (b) Enlargement of the XUV region. Note that carbon and nitrogen will give signal above both water and buffer in the region 300–500 eV, but this signal is on top of the black body background. Simulations were done with 1020 W cm−2.

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