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Imaging calculation of coherent transition radiation Michelson interferometry for adaptive bunch profile reconstruction

K. Huang1,2,*, G. Andonian1, A. Fukasawa1, O. Williams1, P. Manwani1, and J. Rosenzweig1

  • *Contact author: huang.kai@qst.go.jp
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Phys. Rev. Accel. Beams 29, 074101 – Published 29 July, 2026

DOI: https://doi.org/10.1103/v5xw-2nz6

Abstract

We present a methodological study for measuring electron-bunch temporal profiles using coherent transition radiation Michelson interferometry. A numerical frequency-filter model is established through imaging calculations of the experimental setup, accounting for the electron-bunch transverse profile, finite angular acceptance, and detector size. An adaptive genetic-algorithm-based forward-fitting approach is implemented to retrieve arbitrary bunch temporal profiles, demonstrating advantages over the classical Kramers-Kronig minimum-phase method. The frequency-filter model, together with the adaptive fitting framework, provides a robust tool for electron-bunch temporal profile characterization in beam physics studies.

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Phys. Rev. Accel. Beams 29, 074101– Published 29 July, 2026
  • Received 30 January 2026
  • Accepted 9 July 2026
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