Record Details

Title:
Control of gap dependent phase errors on the undulator segments for the European XFEL
Affiliation(s):
EuXFEL staff
Author group:
Undulator Systems
Topic:
Abstract:
Strong magnetic forces in long undulators always result in some girder deformation. This problem gets more serious in long gap tuneable undulators. In addition the deformation varies with changing forces at different gaps resulting in gap dependent phase errors. For the undulators for the European XFEL this problem has been studied thoroughly and quantitatively. A compensation method is presented which uses a combination of suitable shims and pole height tuning. It is exemplified by tuning one of the undulator segments for the European XFEL back to specs.
Imprint:
2015
Report number:
WEP054
Language(s):
English
Conference information:
International Free Electron Laser Conference, FEL 2015, Daejeon, 2015-08-23 - 2015-08-28, South Korea


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 Record created 2016-10-11, last modified 2019-01-30

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