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Updated: Apr 24, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
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Temporally Coherent Synchrotron Light Sources.

Sergey Antipov1, Ilya Agapov1, Ralf Röhlsberger1

  • 1Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany.

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|April 23, 2026
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Summary
This summary is machine-generated.

A workshop explored scientific needs and accelerator designs for future longitudinally coherent X-ray sources. The event focused on developing a community pathway for advancing this cutting-edge synchrotron light technology.

Keywords:
X-ray FEL oscillator (XFELO)microbunchingself-seedingstorage ringstemporally coherent synchrotron light sourcesundulator radiation

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Area of Science:

  • Physics
  • Accelerator Science
  • Materials Science

Background:

  • Synchrotron light sources are crucial for scientific research.
  • Current limitations exist in achieving longitudinal coherence in X-ray beams.
  • Advancements are needed to meet future scientific demands.

Purpose of the Study:

  • To examine the scientific drivers for longitudinally coherent X-ray sources.
  • To investigate novel accelerator concepts for generating such sources.
  • To establish a community pathway for the development of these advanced light sources.

Main Methods:

  • Held a workshop at DESY, Hamburg, Germany.
  • Brought together experts in synchrotron light sources and accelerator physics.
  • Facilitated discussions on scientific requirements and technological solutions.

Main Results:

  • Identified key scientific applications requiring longitudinally coherent X-ray beams.
  • Evaluated various accelerator concepts, including novel designs.
  • Outlined potential strategies for community collaboration and development.

Conclusions:

  • There is a strong scientific case for developing longitudinally coherent X-ray sources.
  • Further research and development in accelerator technology are necessary.
  • A coordinated community effort is essential for realizing these future light sources.