Correlation of refractive index based and THz streaking arrival time tools for a hard X-ray free-electron laser

Błachucki, W.; Johnson, P.J.M.; Usov, I.; Divall, E.; Cirelli, C.; Knopp, G.; Juranić, P.; Patthey, L.; Szlachetko, J.; Lemke, H.; Milne, C.; Arrell, C.

doi:10.1107/S1600577523010500

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Figure 4
(a) Distribution of arrival times $[t_{\,\rm THz}^{\,\ast}]$ measured by the THz streaking time tool (blue). The asterisk denotes that systematic error correction was applied (see Section 4.2

). The orange dataset is the arrival times before the systematic error correction of the THz streaking data [as shown in Fig. 3

(a)]. (b) Arrival time t_Spatial distribution measured by the spatial encoding time tool. (c) 2D histogram of arrival time difference $[t_{\rm Spatial}-t_{\,\rm THz}^{\,\ast}]$ against $[t_{\,\rm THz}^{\,\ast}]$ . (d) Distribution of $[t_{\rm Spatial}-t_{\,\rm THz}^{\,\ast}]$ (blue). The orange dataset is the arrival time differences before the systematic error correction of the THz streaking data [as shown in Fig. 3

(d)]. The solid line in (a), (b) and (d) marks a fitted Gaussian curve. The bin width in (a), (b) and (d) is 2.5 fs and in (c) the bin size is 2.5 fs × 2.5 fs.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 31| Part 2| March 2024| Pages 233-242

https://doi.org/10.1107/S1600577523010500

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