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arXiv · 1811.11446

ROSA: Reconstruction of Spectrogram Autocorrelation for Self-Amplified Spontaneous Emission Free-Electron Lasers

Svitozar Serkez·Oleg Gorobtsov·Bohdana Sobko·Natalia Gerasimova·Gianluca Geloni
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Abstract

In recent years X-ray Free Electron Lasers (XFELs) proved to be unmatched sources of ultrashort pulses of spatially coherent quasimonochromatic X-ray radiation. Diagnostics of XFEL emission properties, in particular pulse duration, spectrum and temporal profile is extremely important in order to analyze the experimental results. In this paper we propose a cost-effective method to examine these properties of Self-Amplified Spontaneous Emission (SASE) pulses. It only requires an ensemble of measured SASE spectra and provides the temporal autocorrelation of the ensemble-averaged Wigner distribution of SASE FEL pulses.

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Svitozar Serkez, Oleg Gorobtsov, Bohdana Sobko, Natalia Gerasimova, Gianluca Geloni. 2018-11-28. ROSA: Reconstruction of Spectrogram Autocorrelation for Self-Amplified Spontaneous Emission Free-Electron Lasers. https://arxiv.org/abs/1811.11446

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