TY  - CONF
AU  - N’gotta, P.
AU  - Vagin, Pavel
AU  - Tischer, M.
TI  - Permanent Magnet phase shifters for FLASH2020+ FEL
JO  - Journal of physics / Conference Series
VL  - 2380
IS  - 1
SN  - 1742-6588
CY  - Bristol
PB  - IOP Publ.
M1  - PUBDB-2023-02968
SP  - 012007
PY  - 2022
AB  - The development of a simple and compact permanent magnet (PM) phase shifter is presented in this paper. The design is based on four PM blocks per girder (8 PM blocks in total), and uses only one type PM block with horizontal magnetization and 15mm length. The magnetic field provides a net zero and second field integral and a phase integral of 2 · 10<sup>–6</sup> T<sup>2</sup>m<sup>3</sup> for 60mm overall magnet length. The study of the numerical model with Radia shows that this design is mainly sensitive to angular magnetization errors. The correction strategy is based on pairing the PM blocks in order to cancel the sum of magnetization angle error, and the remaining magnetic field error is corrected with a stack of magic fingers located around the magnet. Finally, a prototype was built, and the magnetic measurements results are presented here.
T2  - 14th International Conference on Synchrotron Radiation Instrumentation, SRI 2021, Hamburg, Germany, 28 Mar 2022 - 1 Apr 2022
CY  - 28 Mar 2022 - 1 Apr 2022, Hamburg (Germany)
Y2  - 28 Mar 2022 - 1 Apr 2022
M2  - Hamburg, Germany
LB  - PUB:(DE-HGF)16 ; PUB:(DE-HGF)8
DO  - DOI:10.1088/1742-6596/2380/1/012007
UR  - https://bib-pubdb1.desy.de/record/583628
ER  -