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  OPERATION-2023 logbook, Contact: F.Wolff-Fabris, A.Galler, L.Samoylova, H.Sinn  Not logged in ELOG logo
Message ID: 322     Entry time: 25 Aug 2023, 07:29
Author: Tommaso Mazza 
Group: SQS 
Subject: Shift summary 

problems with machine operation

very low yield at 1.8keV, took ~2hrs tuning time to get 600uJ (linear taper)

SA3 cells opened without us knowing when hv was changed

observed strong pointing change (and beam profile shape) when changing

- SASE3 pulse timing

- photon energy

pointing change with changing photon energy was such that the beam would make it through the GATT only partially (att. 1). this is unprecedented.

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