Figure 2
Schematic layout of the full optical pump–soft-X-ray probe set-up at the FemtoSpeX facility after the laser (red boxes) and repetition rate upgrade. The horizontal dimension of the entire set-up is ∼50 m. Synchronized to the 500 MHz master-oscillator driving the RF cavities of the ring, a Ti:Sa oscillator seeds the two regenerative amplifiers that are located in different laser hutches. Both the X-ray beam (blue) and the laser beam (red) travel a similar pathway (in-vacuum) to the experiment, while part of it is bridged by the transversely actively stabilized oscillator beam (dashed red line). As a monochromator, either the high-resolution plane grating monochromator (PGM) or the high-flux zone plate monochromator (ZPM) can be selected by setting a switching mirror to the corresponding position. |