Contribution to a conference proceedings/Contribution to a book

PUBDB-2025-01769

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Development and laboratory validation of a precise alignment setup for electron beam-based THz radiation generation at European XFEL

Wernsmann, J. (Corresponding author)DESY* ; Giesteira, F. ; Lemery, F.DESY*

2025
JACoW Publishing Geneva
ISBN: 978-3-95450-248-6

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Please use a persistent id in citations: doi:10.18429/JACoW-IPAC2025-THPB012  doi:10.3204/PUBDB-2025-01769

Abstract: We present the development and laboratory testing of an alignment setup for the STERN experiment at the European XFEL, aimed at exploring beam-based THz radiation generation methods using Cherenkov waveguides. The setup employs an alignment laser to simulate the electron beam trajectory, enabling the accurate positioning of critical components, such as a copper block housing dielectric waveguides. The alignment process involves scintillator screens placed before and after the vacuum chamber to measure the electron beam trajectory, with the alignment laser subsequently adjusted to replicate this path. The experimental validation focused on the reproducibility of alignment under simulated operational conditions, testing the positioning and movement of mirrors, and ensuring the stability of the alignment system for the critical components.

Keyword(s): Accelerator Physics ; mc7-accelerator-technology-and-sustainability - MC7: Accelerator Technology and Sustainability ; MC7.T17 - MC7.T17 Alignment and Survey

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Contributing Institute(s):

1. Koordination des XFEL-Beschleunigers (MXL)
2. Beschleunigerphysik (MPY)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. 6G13 - Accelerator of European XFEL (POF4-6G13) (POF4-6G13)

Experiment(s):

1. Facility (machine) XFEL

Appears in the scientific report 2025

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