Delayed start of SA1 (and SA3) beam delivery

The beam delivery to the North branch (SASE1 / SASE3) was delayed by 24h compared to the plan due to a malfunction of the smoke detection system in XTD4 and the subsequent investigation and repair.
A ZZ-access to XTD4 on tuesday 13.5.2025 morning to resolve this issue (and scheduled for 7h-9h) turned into a full day access until after 18h, thus the first day of the XFELO study couldn't happen.

SASE1 beam then started at 18h46 with immediately 4.5 mJ at 6.95 keV (0.18 nm). For the night program, at 22h the photon energy was changed to 9.6 keV (0.129 nm).
The planned daytime SASE1 activity (XFELO study) started finally on wednesday at 9h20 when SASE1 was switched back to 6.95 keV.

Throughout all this time the South branch was unaffected and the blue week program in SASE2 happened as scheduled. SASE3 beam delivery was started only on wednesday morning.