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  OPERATION-2023 logbook, Contact: F.Wolff-Fabris, A.Galler, L.Samoylova, H.Sinn  Not logged in ELOG logo
Message ID: 259     Entry time: 17 Jun 2023, 07:41
Author: Faisal Hammad Mekky Koua 
Group:  
Subject: Strange pulse behavior upstream XGM 

- Pulse intensity decreases drastically at XTD2 across the train

- the visualisation of our beam therfore needs to be compensated adjusting transmission

- beam shape and uniformity is different than previous days and it is unclear how much of this is related to real changes in the beam or an effect of the slope in the train. We are therefore spending more time than usual to investigate and align becuse we cannot correct the slope.

 

>50 pulses was requested for alignment explicitly as this is needed to setup the instrument for measurment.

 

 

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