Photon-in photon-out hard X-ray spectroscopy at the Linac Coherent Light Source

Alonso-Mori, R.; Sokaras, D.; Zhu, D.; Kroll, T.; Chollet, M.; Feng, Y.; Glownia, J.M.; Kern, J.; Lemke, H.T.; Nordlund, D.; Robert, A.; Sikorski, M.; Song, S.; Weng, T.-C.; Bergmann, U.

doi:10.1107/S1600577515004488

Journal of Synchrotron Radiation Journal of
Synchrotron Radiation

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Figure 4
(a) Mn $[K\beta]$ XES spectra of PSII measured in the dark stable S₁ state at the CXI instrument at RT (green), at a synchrotron at 8 K (blue) and at a synchrotron at RT (pink) in comparison with the spectrum of MnCl₂ (grey). (b) RT XES of PSII in three different states of the photosynthetic cycle measured at CXI. (c) Differences between the LCLS Mn $[K\beta]$ XES of PSII in the 2F and the transient 3F′ state (red) and in the 2F and 3F state (blue). Before calculating the difference curves, spectra were smoothed by cubic polynomial fitting. Figure reprinted with permission from Kern et al. (2013