Record Details

Title:
Shiming Strategy for the Phase Shifters Used in the European XFEL
Affiliation(s):
EuXFEL staff
Author group:
Undulator Systems
X-Ray Optics
Topic:
Abstract:
The undulator systems of the European XFEL need a total of 91 Phase Shifters. The 1st field integral of these devices must not exceed 0.004Tmm for working gaps > 16mm. For smaller gaps it is slightly released. In spiteof the highly magnetically symmetric design and considerable effort such as the selection and sorting of the magnets small 1st field integral errors cannot be excluded. In this paper a strategy is studied to correct small gap dependent kicking errors as expected for the phase shifters of the XFEL.EU.by using shims of different geometries and sizes. It is found, thatsmall gap dependent kicking errors can well be corrected for using thismethod. This is a systematic effort to provide effective fast tuning methods,which can be applied for the mass production. The meaning of shimsignature will be explained in this paper. The method is demonstrated bysimulations and measurements.
Imprint:
2013
Journal Information:
(2013)
Report number:
2028 - TUPSO42
Language(s):
English
Conference information:
35th International Free-Electron Laser Conference, FEL 2013, New York, 2013-08-26 - 2013-08-30, United States
University name:
Brookhaven National Laboratory


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

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