Figure 7
(a) Histogram of electron bunch arrival times measured with a 2.826 GHz phase cavity at the end of the HX undulator line HX1 with data being sampled for 3.3 min. (b) Correlation plot of BAM1 and BAM2. In (a), the Gaussian fit of electron bunch arrival time jitter is 15.3 fs in r.m.s. |