Achieving high quality electron beam with ultralow energy spread from mismatched plasma channels

Abstract Intense electric fields generated by laser plasma wakefield accelerators can rapidly accelerate electrons to high energies over short distances, potentially reducing both the length and cost of accelerator facilities significantly. However, the electron beams produced often exhibit substant...

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Main Authors: Jiabao Guan, Qiannan Lei, Jianhua Zhong, Lanxin Liu, Yuancun Nie, Guoxing Xia, Jike Wang
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-90741-6
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author Jiabao Guan
Qiannan Lei
Jianhua Zhong
Lanxin Liu
Yuancun Nie
Guoxing Xia
Jike Wang
author_facet Jiabao Guan
Qiannan Lei
Jianhua Zhong
Lanxin Liu
Yuancun Nie
Guoxing Xia
Jike Wang
author_sort Jiabao Guan
collection DOAJ
description Abstract Intense electric fields generated by laser plasma wakefield accelerators can rapidly accelerate electrons to high energies over short distances, potentially reducing both the length and cost of accelerator facilities significantly. However, the electron beams produced often exhibit substantial energy spreads, which imposes significant constraints on their broader applicability. We propose a novel method for reducing energy spread by utilizing periodic changes in the acceleration field slope induced by mismatched plasma channels, allowing for periodic compensation of the energy spread. Simulations of a 1 GeV, 10 pC electron accelerator demonstrate that this method can reduce the energy spread of the electron beam to 0.17%, while effectively preserving other beam quality parameters. This approach is approaching the state-of-the-art in laser plasma wakefield accelerators and holds promise for applications in free electron lasers and synchrotron radiation source injectors.
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institution OA Journals
issn 2045-2322
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publishDate 2025-04-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj-art-c19d7618bb1e4d329185bd1e1a7d479c2025-08-20T02:12:06ZengNature PortfolioScientific Reports2045-23222025-04-0115111010.1038/s41598-025-90741-6Achieving high quality electron beam with ultralow energy spread from mismatched plasma channelsJiabao Guan0Qiannan Lei1Jianhua Zhong2Lanxin Liu3Yuancun Nie4Guoxing Xia5Jike Wang6The Institute for Advanced Studies, Wuhan UniversityThe Institute for Advanced Studies, Wuhan UniversityThe Institute for Advanced Studies, Wuhan UniversityThe Institute for Advanced Studies, Wuhan UniversityThe Institute for Advanced Studies, Wuhan UniversityDepartment of Physics and Astronomy, University of ManchesterThe Institute for Advanced Studies, Wuhan UniversityAbstract Intense electric fields generated by laser plasma wakefield accelerators can rapidly accelerate electrons to high energies over short distances, potentially reducing both the length and cost of accelerator facilities significantly. However, the electron beams produced often exhibit substantial energy spreads, which imposes significant constraints on their broader applicability. We propose a novel method for reducing energy spread by utilizing periodic changes in the acceleration field slope induced by mismatched plasma channels, allowing for periodic compensation of the energy spread. Simulations of a 1 GeV, 10 pC electron accelerator demonstrate that this method can reduce the energy spread of the electron beam to 0.17%, while effectively preserving other beam quality parameters. This approach is approaching the state-of-the-art in laser plasma wakefield accelerators and holds promise for applications in free electron lasers and synchrotron radiation source injectors.https://doi.org/10.1038/s41598-025-90741-6
spellingShingle Jiabao Guan
Qiannan Lei
Jianhua Zhong
Lanxin Liu
Yuancun Nie
Guoxing Xia
Jike Wang
Achieving high quality electron beam with ultralow energy spread from mismatched plasma channels
Scientific Reports
title Achieving high quality electron beam with ultralow energy spread from mismatched plasma channels
title_full Achieving high quality electron beam with ultralow energy spread from mismatched plasma channels
title_fullStr Achieving high quality electron beam with ultralow energy spread from mismatched plasma channels
title_full_unstemmed Achieving high quality electron beam with ultralow energy spread from mismatched plasma channels
title_short Achieving high quality electron beam with ultralow energy spread from mismatched plasma channels
title_sort achieving high quality electron beam with ultralow energy spread from mismatched plasma channels
url https://doi.org/10.1038/s41598-025-90741-6
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