23–28 Aug 2026
America/Los_Angeles timezone

Dispersion tuning in linear accelerators using microbunching damping

TUP12
25 Aug 2026, 16:00
2h
Poster Presentation Session 10: Electron Diagnostics, Timing, Synchronization, and Controls Tuesday Poster Session

Speaker

Sergei Kladov (University of Chicago)

Description

Microbunching damping in relativistic electron beams is strongly influenced by inverse dispersive transport terms that couple transverse phase-space coordinates to the longitudinal displacement. In this work, we investigate the use of microbunching damping as a diagnostic and optimization tool for lattice tuning in linear accelerators. In particular, residual dispersion is minimized by maximizing the observed microbunching amplification.

Two representative cases are studied: tuning of a dogleg quadrupole strength and transverse sextupole positioning in a W-chicane. For both systems, experimental measurements are compared with numerical particle tracking simulations and analytical predictions.

The results demonstrate that microbunching-based dispersion characterization can serve as a faster alternative to conventional dispersion measurements, enabling more efficient lattice optimization.

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Author

Sergei Kladov (University of Chicago)

Co-authors

Claudio Emma (SLAC National Accelerator Laboratory) Zhirong Huang (SLAC National Accelerator Laboratory)

Presentation materials

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