Concerning damage of the SA1 FEL imager, Operation-2024 eLog #206
The screen position of the YAG screen - when pressing the screen selection button - has been moved by 1 mm so that the damaged area is out of the field of view, see attached screenshots.
The screenshots show the cross-hair, i.e. its nominal beam position and the circular damaged area at its original position of the screen and the new position.
More information on the damage can be found in the damage report, entry #35:
https://docs.xfel.eu/share/page/site/xfelwp74/document-details?nodeRef=workspace://SpacesStore/fd862f30-c6a3-4a5e-9a65-817cbcebb2d9
Also, there is a comment in ttfinfo: https://ttfinfo.desy.de/XFELelog/show.jsp?dir=/2024/47&pos=2024-11-19T09:39:31 |