CAMP@FLASH: an end-station for imaging, electron- and ion-spectroscopy, and pump–probe experiments at the FLASH free-electron laser

Erk, B.; Müller, J.P.; Bomme, C.; Boll, R.; Brenner, G.; Chapman, H.N.; Correa, J.; Düsterer, S.; Dziarzhytski, S.; Eisebitt, S.; Graafsma, H.; Grunewald, S.; Gumprecht, L.; Hartmann, R.; Hauser, G.; Keitel, B.; von Korff Schmising, C.; Kuhlmann, M.; Manschwetus, B.; Mercadier, L.; Müller, E.; Passow, C.; Plönjes, E.; Ramm, D.; Rompotis, D.; Rudenko, A.; Rupp, D.; Sauppe, M.; Siewert, F.; Schlosser, D.; Strüder, L.; Swiderski, A.; Techert, S.; Tiedtke, K.; Tilp, T.; Treusch, R.; Schlichting, I.; Ullrich, J.; Moshammer, R.; Möller, T.; Rolles, D.

doi:10.1107/S1600577518008585

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Figure 4
Using an FEL photon energy of 92 eV and a pulse energy of ∼60 µJ (120 µJ at BDA-GMD), 90 fs pulse length and 92 eV photon energy, charge states of xenon up to 22+ have been observed in the focus. (a) Xenon time-of-flight spectrum measured in the focus of the CAMP end-station (z = 0.00mm). (b) Moving the spectrometer, with a limited acceptance, along the FEL beam in the range −0.25 mm to +1.00 mm shows significant changes in the yields of high charge states of xenon, demonstrating the strong divergence of the beam and its effect on non-linear intensity-dependent effects.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 25| Part 5| September 2018| Pages 1529-1540

https://doi.org/10.1107/S1600577518008585

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