Experimental demonstration of a tomographic 5D phase-space reconstruction Article Swipe

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S. Jaster-Merz , R. Aßmann , J. Beinortaitė , Jonas Björklund Svensson , R. Brinkmann , Florian Burkart , P. Craievich , H. Dinter , P. González , W. Hillert , Aarati Kanekar , Max Kellermeier , Willi Kuropka , Frank Mayet , Jens Osterhoff , B.J. Stacey , M. M. Stanitzki , Thomas Vinatier , S. Wesch , Richard D’Arcy ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2505.13724 · OA: W4415019186

Detailed knowledge of particle-beam properties is of great importance to understand and push the performance of existing and next-generation particle accelerators. We recently proposed a new phase-space tomography method to reconstruct the five-dimensional (5D) phase space, i.e., the charge density distribution in all three spatial directions and the two transverse momenta. Here, we present the first experimental demonstration of the method at the FLASHForward facility at DESY. This includes the reconstruction of the 5D phase-space distribution of a GeV-class electron bunch, the use of this measured phase space to create a particle distribution for simulations, and the extraction of the transverse 4D slice emittance.