Scientific Results

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

Year: 2018

Authors: Tomassini P., De Nicola S., Labate L., Londrillo P., Fedele R., Terzani D., Nguyen F., Vantaggiato G., Gizzi LA

Autors Affiliation: INO CNR, Intense Laser Irradiat Lab, Pisa, Italy.
[De Nicola, S.] SPIN CNR, Sect Napoli, Naples, Italy.
[Labate, L.; Gizzi, L. A.] INFN, Sect Pisa, Pisa, Italy.
[Londrillo, P.] INAF, Bologna, Italy.
[Fedele, R.; Terzani, D.] Univ Napoli Federico II, Dip Fis, Naples, Italy.
[De Nicola, S.; Fedele, R.; Terzani, D.] INFN, Sect Napoli, Naples, Italy.
[Nguyen, F.] ENEA, Nucl Fus & Safety Technol Dept, Frascati, Italy.

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 x rad and 0.5%, respectively. Analytical consideration of the FEL performance for a 1.3 GeV bunch will be also reported.

Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

More Information: Nuclear Physics, NP. College of Natural Resources, University of California Berkeley, CNR. No 653782-EuPRAXIA. – We thank Giuseppe Dattoli for his help and suggestions in estimating the FEL performance with the electron beams discussed in the text. The research leading to these results has received funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No 653782-EuPRAXIA . We also acknowledge financial support from the ELI-ITALY Network funded by CNR ( ELI- Nuclear Physics (FOE) D.M.n. 631 del 08.08.2016 ).
KeyWords: ReMPI
DOI: 10.1016/j.nima.2018.03.002

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