As the beam in the ESR is most probably not bunched, there was not much we could do. During the night shift we:
- adjusted the threshold of the PMTs mid and north with beam in the ring
- found that the delay generator for PMT mid is broken, so the timing is off and needs to be remeasured
- tried to see the beam with PMT north, but with no success. Maybe with bunched beam this will be possible.

We turned off the PMTs, stopped mbs and the ESR pattern, notified HKR and left at 5am.


===> 10.05.12:30 (Carsten)
I checked the bunching in the HKR - the beam is bunche - see attached Foto from scope in HKR.
The blue line shows (the "zig-zag") that the ion beam is very well bunched, and that bunching frequency and cooling energy are "well matched".