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Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel
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 performi...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8313720/ https://www.ncbi.nlm.nih.gov/pubmed/34312453 http://dx.doi.org/10.1038/s41598-021-94751-y |
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author | Sedaghat, M. Barzegar, S. Niknam, A. R. |
author_facet | Sedaghat, M. Barzegar, S. Niknam, A. R. |
author_sort | Sedaghat, M. |
collection | PubMed |
description | 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 | Online Article Text |
id | pubmed-8313720 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-83137202021-07-28 Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel Sedaghat, M. Barzegar, S. Niknam, A. R. Sci Rep Article 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. Nature Publishing Group UK 2021-07-26 /pmc/articles/PMC8313720/ /pubmed/34312453 http://dx.doi.org/10.1038/s41598-021-94751-y Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Sedaghat, M. Barzegar, S. Niknam, A. R. Quasi-phase-matched laser wakefield acceleration of electrons in an axially density-modulated plasma channel |
title | 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_short | 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 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8313720/ https://www.ncbi.nlm.nih.gov/pubmed/34312453 http://dx.doi.org/10.1038/s41598-021-94751-y |
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