Journal Article/Contribution to a conference proceedings

PUBDB-2024-07181

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Construction and commissioning of an APPLE-III afterburner undulator as a prototype for radiators in the new seeding line of FLASH2020+

Tischer, M. (Corresponding author)DESY* ; Bienert, H.DESY* ; Götze, K.DESY* ; Neumann, P.DESY* ; Ramm, T.DESY* ; Schoeps, A.DESY* ; Talkovski, P.DESY* ; Telawane, S.Extern*DESY* ; Vagin, P.DESY*

2025
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/1742-6596/3010/1/012045  doi:10.3204/PUBDB-2024-07181

Abstract: An APPLE-III undulator with 17.5 mm period length operating at aminimum magnetic gap of 8 mm was installed downstream of the FLASH2 SASEundulators. This device serves as an afterburner and was designed to providearbitrarily (also circularly) polarized light at the 3rd harmonic of the FLASH2radiation with a wavelength of 1.33 nm to 1.77 nm (890-700eV), covering theabsorption L-edges of the magnetic 3d elements. After characterization of thedifferent polarization modes at different wavelengths in a first commissioningphase, first user experiments have been conducted.Here, we report on our experiences with the mechanical and magnetic assemblyof the APPLE-III UE17 as well as on magnetic measurements and tuning oftrajectories and phase errors at the different polarization states.

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Contributing Institute(s):

1. FS-Undulator Systeme (FS-US)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. 6G2 - FLASH (DESY) (POF4-6G2) (POF4-6G2)

Experiment(s):

1. FLASH 2020+ Project

Appears in the scientific report 2025

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Database coverage:
; ; ; Nationallizenz ; SCOPUS

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings Laasch, W. (Editor)DESY* ; Feidenhans'l, R. (Editor)XFEL.EU*
Synchrotron radiation instrumentation: proceedings, 15th international conference, SR>I 2024, Hamburg, Germany August 26-30, 2024
202515th International Conference on Synchrotron Radiation Instrumentation, SRI 2024, HamburgHamburg, Germany, 26 Aug 2024 - 30 Aug 20242024-08-262024-08-30 Bristol, UK : IOP Publishing Ltd, Journal of Physics: Conference Series 3010 (2025), nonconsec. pag. (2025)2025     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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