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DOE OSTI · 1972101

Reconstructions from randomly generated longitudinal electron bunch profiles with Gaussian envelopes using the Gerchberg–Saxton algorithm

Ostler, Bricker·Yampolsky, Nikolai·Marksteiner, Quinn R.
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Abstract

Knowledge of longitudinal electron bunch profiles is vital to optimize the performance of plasma wakefield accelerators and x-ray free electron laser linacs. Because of their importance to these novel applications, noninvasive frequency domain techniques are often employed to reconstruct longitudinal bunch profiles from coherent synchrotron, transition, or undulator radiation measurements. In this paper, we detail several common reconstruction techniques involving the Kramers–Kronig phase relationship and Gerchberg–Saxton algorithm. Additionally, through statistical analysis, we draw general conclusions about the accuracy of these reconstruction techniques and the most suitable candidate for reconstructing well-isolated longitudinal bunch profiles from spectroscopic data.

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47 OTHER INSTRUMENTATIONcoherent radiationelectron beamsfree electron lasersplasma accelerationsignal processingsynchrotron radiationtransition radiationundulator radiation

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Ostler, Bricker, Yampolsky, Nikolai, Marksteiner, Quinn R.. 2021-09-17. Reconstructions from randomly generated longitudinal electron bunch profiles with Gaussian envelopes using the Gerchberg–Saxton algorithm. https://doi.org/10.1063/5.0054322

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