High temporal resolution THz streaking of high brightness relativistic electron beams

Fuente: arXiv
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Main Authors: Lenz, Maximilian, Schaap, Brian, Kulkarni, Atharva, Tan, Yuemei, Yang, Yining, Li, Renkai, Musumeci, Pietro
Format: Preprint
Published: 2026
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author Lenz, Maximilian
Schaap, Brian
Kulkarni, Atharva
Tan, Yuemei
Yang, Yining
Li, Renkai
Musumeci, Pietro
author_facet Lenz, Maximilian
Schaap, Brian
Kulkarni, Atharva
Tan, Yuemei
Yang, Yining
Li, Renkai
Musumeci, Pietro
contents We report a systematic experimental study of terahertz (THz) streaking structures for ultrafast characterization of relativistic, high-brightness electron beams. Horn-coupled waveguide geometries are investigated, enabling a comparative characterization of streaking strength, dispersion, transmission, and temporal fidelity. Analytical models and electromagnetic simulations are used to describe the dependence of streaking power on the waveguide dimensions and the drive frequency. Experimentally, the structures are characterized using compressed electron beam from an RF photoinjector over a range of THz field strengths, beam energies, and bunch durations. These results establish general design principles and performance limits for THz streaking structures applicable to ultrafast electron beam diagnostics.
format Preprint
id arxiv_https___arxiv_org_abs_2605_00125
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle High temporal resolution THz streaking of high brightness relativistic electron beams
Lenz, Maximilian
Schaap, Brian
Kulkarni, Atharva
Tan, Yuemei
Yang, Yining
Li, Renkai
Musumeci, Pietro
Accelerator Physics
We report a systematic experimental study of terahertz (THz) streaking structures for ultrafast characterization of relativistic, high-brightness electron beams. Horn-coupled waveguide geometries are investigated, enabling a comparative characterization of streaking strength, dispersion, transmission, and temporal fidelity. Analytical models and electromagnetic simulations are used to describe the dependence of streaking power on the waveguide dimensions and the drive frequency. Experimentally, the structures are characterized using compressed electron beam from an RF photoinjector over a range of THz field strengths, beam energies, and bunch durations. These results establish general design principles and performance limits for THz streaking structures applicable to ultrafast electron beam diagnostics.
title High temporal resolution THz streaking of high brightness relativistic electron beams
topic Accelerator Physics
url https://arxiv.org/abs/2605.00125