run 14585   beam lost a little (from 33.8mA to 31.6mA)
            that cause HV of MDC, SC and VC trip.
run 14590   beam lost, HV trip.
run 14591   beam lost, end run.
run 14602   The current of e+ and e- are not symmetry. 
            Ie+ = 20.37mA Ie- = 16.04 mA