Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel

Abstract Quasi-phase matching in corrugated plasma channels has been proposed as a way to overcome the dephasing limitation in laser wakefield accelerators. In this study, the phase-lock dynamics of a relatively long electron bunch injected in an axially-modulated plasma waveguide is investigated by...

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Autores principales:	M. Sedaghat, S. Barzegar, A. R. Niknam
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ec39d1be28ab4316ad17de4e285d3024
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spelling	oai:doaj.org-article:ec39d1be28ab4316ad17de4e285d30242021-12-02T16:24:59ZQuasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel10.1038/s41598-021-94751-y2045-2322https://doaj.org/article/ec39d1be28ab4316ad17de4e285d30242021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94751-yhttps://doaj.org/toc/2045-2322Abstract Quasi-phase matching in corrugated plasma channels has been proposed as a way to overcome the dephasing limitation in laser wakefield accelerators. In this study, the phase-lock dynamics of a relatively long electron bunch injected in an axially-modulated plasma waveguide is investigated by performing particle simulations. The main objective here is to obtain a better understanding of how the transverse and longitudinal components of the wakefield as well as the initial properties of the beam affect its evolution and qualities. The results indicate that the modulation of the electron beam generates trains of electron microbunches. It is shown that increasing the initial energy of the electron beam leads to a reduction in its final energy spread and produces a more collimated electron bunch. For larger bunch diameters, the final emittance of the electron beam increases due to the stronger experienced transverse forces and the larger diameter itself. Increasing the laser power improves the maximum energy gain of the electron beam. However, the stronger generated focusing and defocusing fields degrade the collimation of the bunch.M. SedaghatS. BarzegarA. R. NiknamNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. Sedaghat S. Barzegar A. R. Niknam Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
description	Abstract Quasi-phase matching in corrugated plasma channels has been proposed as a way to overcome the dephasing limitation in laser wakefield accelerators. In this study, the phase-lock dynamics of a relatively long electron bunch injected in an axially-modulated plasma waveguide is investigated by performing particle simulations. The main objective here is to obtain a better understanding of how the transverse and longitudinal components of the wakefield as well as the initial properties of the beam affect its evolution and qualities. The results indicate that the modulation of the electron beam generates trains of electron microbunches. It is shown that increasing the initial energy of the electron beam leads to a reduction in its final energy spread and produces a more collimated electron bunch. For larger bunch diameters, the final emittance of the electron beam increases due to the stronger experienced transverse forces and the larger diameter itself. Increasing the laser power improves the maximum energy gain of the electron beam. However, the stronger generated focusing and defocusing fields degrade the collimation of the bunch.
format	article
author	M. Sedaghat S. Barzegar A. R. Niknam
author_facet	M. Sedaghat S. Barzegar A. R. Niknam
author_sort	M. Sedaghat
title	Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
title_short	Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
title_full	Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
title_fullStr	Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
title_full_unstemmed	Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
title_sort	quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ec39d1be28ab4316ad17de4e285d3024
work_keys_str_mv	AT msedaghat quasiphasematchedlaserwakefieldaccelerationofelectronsinanaxiallydensitymodulatedplasmachannel AT sbarzegar quasiphasematchedlaserwakefieldaccelerationofelectronsinanaxiallydensitymodulatedplasmachannel AT arniknam quasiphasematchedlaserwakefieldaccelerationofelectronsinanaxiallydensitymodulatedplasmachannel
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Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel

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