XFEL Operations

Hi all, the SXP colleagues asked us to deliver 800 bunches, which was not possible with the assumed minimum pulse intensity of 5.3 mJ and the overall power limit of 40 W.  The assumed pulse intensity is a safety backup in case the XGM fails and we do, in fact, deliver currently only 0.4 mJ per pulse (800 bunches → 3.2 W in total).  Higher pulse intensities are not good for the current SXP experiment and thus they will not ask for more and besides that,…

Change to the rolling pulse pattern in SA2 Set number of SA2 bunches to zero. Open the launch FB loop for SA2. Change the SA2 launch FB setup such that it looks at SA4 bunches (Detailed explanation at the end of this page). Load the following pattern (every 60th bunch to SA2, in total 6 bunches): Screenshot 2023-11-24 at 11.28.40.png the kicker adaption pattern  set the Pattern Sequence to 9[A][B]. Apply it with the correct number of bunches (SA1 and SA3 as before, SA2 set to 6,…

I saw a few nice summaries in the logbook lately and that is great! Thanks! But that is also true:  Screenshot 2023-11-17 at 15.15.16.png It would be great if you could, for example, summarise tuning successes or problem descriptions in a short logbook entry and add your name and a title. As always, error reports to the experts can only be processed properly if you write a short text.…