23–28 Aug 2026
America/Los_Angeles timezone

Fast Electron Beam Steering for MHz X-ray Beam Sharing

MOP19
24 Aug 2026, 16:00
2h
Poster Presentation Session 8: Electron Beam Dynamics Monday Poster Session

Speaker

Trey Guest (European X-Ray Free-Electron Laser)

Description

Scheme for simultaneous MHz operation of beamline endstations based on electron and photon beam steering.

The European XFEL comprises three SASE beamlines that branch to eight endstation instruments. Each beamline currently operates a single instrument exclusively, fundamentally limiting the total beamtime available for experiments. In this talk, we propose an electron beam steering approach that can enable simultaneous operation of multiple scientific endstations on a single undulator beamline. By avoiding the thermal and mechanical limitations of X-ray optical multiplexing, our method allows flexible beam distribution between instruments at up to MHz repetition rates.

We describe the implementation of fast beam steering at the European XFEL, characterise the joint electron–photon beam response to fast steering, and specify key optical constraints. Finally, we show how our method can be coupled with advanced experimental schemes to unlock new scientific opportunities and evaluate the potential impact of our approach on the design of existing and emerging XFELs beamlines.

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Author

Trey Guest (European X-Ray Free-Electron Laser)

Co-authors

Dr Anders Madsen (European X-Ray Free-Electron Laser) Fady Bishara (European X-Ray Free-Electron Laser) Harald Sinn (European XFEL GmbH) Marc Guetg (Deutsches Elektronen-Synchrotron DESY) Maurizio Vannoni (European X-Ray Free-Electron Laser) Mikako Makita (European X-Ray Free-Electron Laser)

Presentation materials

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