25–27 Jun 2025
DESY
Europe/Berlin timezone

Latest Advancements of a Compact Electro-optical Bunch Length Detector

26 Jun 2025, 10:41
3m
Seminar Room 1-3 (DESY)

Seminar Room 1-3

DESY

Platanenallee 6, 15738 Zeuthen
Poster (including Speed Talk) Beam diagnostics Beam Diagnostics

Speaker

Marie Kristin Czwalinna (DESY, MSK)

Description

Laser-based electro-optic detection (EOD) has been a valuable method to measure the longitudinal electron bunch shape with sub-ps resolution for almost a decade now, but it has always been a tool for expert use.
At European XFEL and FLASH, we are advancing the EOD from an expert device to a user friendly tool, with new operator interface and automated, server-based procedures for laser locking, time calibration and online data analysis.
The system at European XFEL is currently used in an electro-optic spectral decoding configuration (EOSD), but the implementation of advanced reconstruction algorithms (Diversity Enhanced EO Spectral Decoding, DEOS) is ongoing to surpass resolution limitations when recording broadband THz radiation over long temporal acquisition windows.

Primary author

Bernd Steffen (MSK (Strahlkontrollen))

Co-authors

Dietrich Rothe (MSK (Strahlkontrollen)) Marie Kristin Czwalinna (DESY, MSK) Tomasz Kozak (DESY - Deutsches Elektronen-Synchrotron)

Presentation materials

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