High-quality GeV-scale electron bunches with the Resonant Multi-Pulse Ionization Injection

High-quality GeV-scale electron bunches with the Resonant Multi-Pulse Ionization Injection
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P. Tomassini, S. De Nicola, L. Labate, P. Londrillo, R. Fedele, D. Terzani, F. Nguyen, G. Vantaggiato, L.A. Gizzi

Nuclear Inst. and Methods in Physics Research, A 909 (2018) 1–4

Abstract

Recently a new injection scheme for Laser Wake Field Acceleration, employing a single 100-TW-class laser system, has been proposed. In the Resonant Multi-Pulse Ionization injection (ReMPI) a resonant train of pulses drives a large amplitude plasma wave that traps electrons extracted from the plasma by further ionization of a high-Z dopant (Argon in the present paper). While the pulses of the driver train have intensity below the threshold for the dopant’s ionization, the properly delayed and frequency doubled (or more) ionization pulse possesses an electric field large enough to extract electrons, though its normalized amplitude is well below unity. In this paper we will report on numerical simulations results aimed at the generation of GeV-scale bunches with normalized emittance and rms energy below 80 nm × rad and 0.5%, respectively. Analytical consideration of the FEL performance for a 1.3 GeV bunch will be also reported.

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  • dicembre 29, 2018 Create Date
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