Figure 2 | Scientific Reports

Figure 2

From: Mapping few-femtosecond slices of ultra-relativistic electron bunches

Figure 2

LPSD of an unseeded (a) and a seeded electron bunch (b) and the corresponding current profiles (c) and (d). The energy drop and energy spread increase of the electrons due to the FEL process can be seen in the right picture. In the subsequent plots, only the core region (white background) between −200 fs and +200 fs that supports FEL lasing will be shown.

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