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arXiv · 2307.14796

Optimization of the Resolution of a Streaking Setup

F. Mayet·K. Floettmann
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Abstract

In low $\gamma$ regimes the inevitable induced energy spread in combination with longitudinal dispersion during the drift through a transverse deflecting structure (TDS) can alter the phase space of the particle bunch to be characterized. The consequential bunch lengthening can render measuring ultra-short bunches impossible, even for high available streaking powers and hence theoretical resolution. In this work the resulting effective resolution of a TDS is estimated analytically and the optimal streaking voltage is determined. The findings are subsequently benchmarked using matrix-based particle tracking. Furthermore, additional transverse, as well as other resolution limiting effects of a realistic streaking setup are discussed. A potential mitigation scheme using an additional downstream focusing element is evaluated.

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F. Mayet, K. Floettmann. 2023-07-27. Optimization of the Resolution of a Streaking Setup. https://doi.org/10.1103/physrevaccelbeams.26.112802

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