Enhanced relativistic-electron beam collimation using two consecutive laser pulses

Sophia Malko; Xavier Vaisseau; Frederic Perez; Dimitri Batani; Alessandro Curcio; Michael Ehret; Javier Honrubia; Katarzyna Jakubowska; Alessio Morace; João Jorge Santos; Luca Volpe

doi:10.1038/s41598-019-50401-y

Enhanced relativistic-electron beam collimation using two consecutive laser pulses

Sophia Malko, Xavier Vaisseau, Frederic Perez, Dimitri Batani, Alessandro Curcio, Michael Ehret, Javier Honrubia, Katarzyna Jakubowska, Alessio Morace, João Jorge Santos, Luca Volpe

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

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-K_α 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.

Original language	English (US)
Article number	14061
Journal	Scientific reports
Volume	9
Issue number	1
DOIs	https://doi.org/10.1038/s41598-019-50401-y
State	Published - Dec 1 2019
Externally published	Yes

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10.1038/s41598-019-50401-y

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@article{249a766652bd4a0997fed988c570f494,

title = "Enhanced relativistic-electron beam collimation using two consecutive laser pulses",

abstract = "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.",

author = "Sophia Malko and Xavier Vaisseau and Frederic Perez and Dimitri Batani and Alessandro Curcio and Michael Ehret and Javier Honrubia and Katarzyna Jakubowska and Alessio Morace and Santos, \{Jo{\~a}o Jorge\} and Luca Volpe",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = dec,

day = "1",

doi = "10.1038/s41598-019-50401-y",

language = "English (US)",

volume = "9",

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TY - JOUR

T1 - Enhanced relativistic-electron beam collimation using two consecutive laser pulses

AU - Malko, Sophia

AU - Vaisseau, Xavier

AU - Perez, Frederic

AU - Batani, Dimitri

AU - Curcio, Alessandro

AU - Ehret, Michael

AU - Honrubia, Javier

AU - Jakubowska, Katarzyna

AU - Morace, Alessio

AU - Santos, João Jorge

AU - Volpe, Luca

PY - 2019/12/1

Y1 - 2019/12/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85072847468

UR - https://www.scopus.com/inward/citedby.url?scp=85072847468&partnerID=8YFLogxK

U2 - 10.1038/s41598-019-50401-y

DO - 10.1038/s41598-019-50401-y

M3 - Article

C2 - 31575932

AN - SCOPUS:85072847468

SN - 2045-2322

VL - 9

JO - Scientific reports

JF - Scientific reports

IS - 1

M1 - 14061

ER -

Enhanced relativistic-electron beam collimation using two consecutive laser pulses

Abstract

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