Shot-to-shot acquisition ultrafast electron diffraction

2025/02/04 by Claude, Remi, Puppin, Michele, Weaver, Bruce +3 · 1 citation
#FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det)

paper · doi:10.48550/arxiv.2502.02540

Abstract

We demonstrate a novel shot-to-shot acquisition method for optical pump - keV electron energy probe in ultrafast scattering experiments. We integrate a phase-locked acquisition scheme at a repetition rate of 20kHz in a conventional ultrafast electron diffraction (UED) setup. We proceed to a full characterization of the noise level in different configurations and for realistic scenarios. The shot-to-shot acquisition improves the signal-to-noise ratio (SNR) by one order of magnitude and can be readily implemented in other high-repetition rate electron diffraction and spectroscopy setups.

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• Prospects for Direct Electron Detectors in Ultrafast Electron Diffraction and Scattering Experiments

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