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  OPERATION-2023 logbook, Contact: F.Wolff-Fabris, A.Galler, L.Samoylova, H.Sinn  Not logged in ELOG logo
Message ID: 160     Entry time: 27 Apr 2023, 07:51
Author: Alejandro Laso Garcia 
Group: HED 
Subject: HED Full Day Summary 26.04. 

Morning shift:

- Tried to align the fiducial fiber in IC1 for the streak cameras, however it was unsuccessful.

- The karabo device for the SOP had to be restarted. Crosschecked that all the timings were still correct.

- Took some CeO2 diffraction images on the VAREX detectors and found several problems:

  1. the VAREX detectors are storing the data under different trainIds. Taking as reference the pulse-picker unit, VAREX1 stores data in trainId+2 and VAREX2 in trainId+15.
  2. the frames appear to be "hard cut". The diffraction signal gets cut as if the readout was interrupted and the rest of the frame is filled with background.

- DiPOLE works ongoing, focus optimization.

 

Late shift:

- DiPOLE timing achieved

- Spatial and temporal calibration of SOP and Visar.

- First DiPOLE shots, however no signal seen in Varex, some fringe shift observed in visar.

 

Night shift:

- Further few shots to debug the issues.

- Users wanted to optimize imaging of the VISAR, achieved optimization in Arm 3

- Debugging of Varex trainId and frame cropping issues. Should be followed up with controls.

- Achieved signal in the fiducial fiber from IC1.

 

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