Enhanced relativistic-electron beam collimation using two consecutive laser pulses

被引：0

作者：

Sophia Malko

Xavier Vaisseau

Frederic Perez

Dimitri Batani

Alessandro Curcio

Michael Ehret

Javier Honrubia

Katarzyna Jakubowska

Alessio Morace

João Jorge Santos

Luca Volpe

机构：

[1] Centro de Laseres Pulsados (CLPU),Institute of Laser Engineering

[2] Parque Cientifico,undefined

[3] University of Salamanca,undefined

[4] Laboratoire pour l’Utilisation des Lasers Intenses,undefined

[5] Ecole Polytechnique,undefined

[6] CNRS,undefined

[7] CEA,undefined

[8] UMR 7605,undefined

[9] Univ. Bordeaux,undefined

[10] CNRS,undefined

[11] CEA,undefined

[12] CELIA (Centre Lasers Intenses et Applications),undefined

[13] UMR 5107,undefined

[14] Laboratori Nazionali di Frascati (INFN),undefined

[15] Institut für Kernphysik,undefined

[16] Technische Universität Darmstadt,undefined

[17] ETSI Aeronáuticos,undefined

[18] Universidad Politécnica de Madrid,undefined

[19] Institute of Plasma Physics and Laser Microfusion,undefined

[20] Osaka University,undefined

[21] Laser-Plasma Chair at the University of Salamanca,undefined

来源：

Scientific Reports | / 9卷

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摘要：

The double laser pulse approach to relativistic electron beam (REB) collimation in solid targets has been investigated at the LULI-ELFIE facility. In this scheme two collinear laser pulses are focused onto a solid target with a given intensity ratio and time delay to generate REBs. The magnetic field generated by the first laser-driven REB is used to guide the REB generated by a second delayed laser pulse. We show how electron beam collimation can be controlled by properly adjusting the ratio of focus size and the delay time between the two pulses. We found that the maximum of electron beam collimation is clearly dependent on the laser focal spot size ratio and related to the magnetic field dynamics. Cu-Kα and CTR imaging diagnostics were implemented to evaluate the collimation effects on the respectively low energy (≤100 keV) and high energy (≥MeV) components of the REB.

引用

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