Figure 5

Light intensity at 706.5 nm (green lines) and voltage signal (red lines): (i) at the duty cycle of \(\approx 8\)% for the first negative (a) and positive (b) pulses in the bunch; (ii)  at the duty cycle of \(\approx 50\)% for the first negative (c) and positive (d) pulses in the bunch; (iii) at the duty cycle of \(\approx 90\)% for the first negative (e) and positive (f) pulses in the bunch. The signals were recorded with 50 accumulations. The time scale is chosen to represent one full bunch of the applied voltage.