Figure 3
NanoGate layout. Experimental setup for NanoGate characterization measurements performed at P23 beamline at PETRA III, DESY. A Q-switched laser is synchronized to the PETRA III bunch clock and delivers optical excitation pulses with a duration of 7 ns to the TG setup (Pudell et al., 2019) at a repetition rate of almost 1 kHz. The synchronization unit is also used to tune the pump–probe delay. The X-ray bunch spacing in 40 bunch mode is 196 ns and the X-ray pulse duration is 100 ps. Diffracted photons are detected by a hybrid pixel area detector in external gating mode (Pennicard et al., 2013) (X-Spectrum LAMBDA 750k). |