Multi-GeV cascaded laser wakefield acceleration in a hybrid capillary discharge waveguide

Zhiyong Qin; Wentao Li; Jiaqi Liu; Jiansheng Liu; Wentao Wang; Changhai Yu; Zhijun Zhang; Xinliang Wang; Jinfeng Li; Yuxin Leng; Xiaoyan Liang; Ruxin Li; Zhizhan Xu

doi:10.1088/1367-2630/ac81e2

Multi-GeV cascaded laser wakefield acceleration in a hybrid capillary discharge waveguide

Zhiyong Qin, Wentao Li, Jiaqi Liu, Jiansheng Liu, Wentao Wang, Changhai Yu, Zhijun Zhang, Xinliang Wang, Jinfeng Li, Yuxin Leng, Xiaoyan Liang, Ruxin Li, Zhizhan Xu

Physics

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Abstract

Based on a 6 cm-long two-segment hybrid capillary discharge waveguide, a multi-GeV electron beam with energy up to 3.2 GeV and 9.7% rms energy spread was achieved in a cascaded laser wakefield acceleration scheme, powered by an on-target 210 TW laser pulse. The electron beam was trapped in the first segment via ionization-induced injection, and then seeded into the second segment for further acceleration. The long-distance stable guiding of the laser pulse and suppression of the dark current inside the second-segment capillary played an important role in the generation of high-energy electron beams, as demonstrated by quasi-three-dimensional particle-in-cell simulations.

Original language	English
Article number	073048
Number of pages	10
Journal	New Journal of Physics
Volume	24
Issue number	7
DOIs	https://doi.org/10.1088/1367-2630/ac81e2
Publication status	Published - 10 Aug 2022

Keywords

particle-in-cell-simulations
laser wakefield acceleration
capillary discharge waveguide
ionization-induced injection
high-energy electron beams

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10.1088/1367-2630/ac81e2Licence: CC BY 4.0

Qin-etal-NJP-2022-Multi-GeV-cascaded-laser-wakefield-acceleration-in-a-hybrid-capillary-dischargeFinal published version, 2.48 MBLicence: CC BY 4.0

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title = "Multi-GeV cascaded laser wakefield acceleration in a hybrid capillary discharge waveguide",

abstract = "Based on a 6 cm-long two-segment hybrid capillary discharge waveguide, a multi-GeV electron beam with energy up to 3.2 GeV and 9.7% rms energy spread was achieved in a cascaded laser wakefield acceleration scheme, powered by an on-target 210 TW laser pulse. The electron beam was trapped in the first segment via ionization-induced injection, and then seeded into the second segment for further acceleration. The long-distance stable guiding of the laser pulse and suppression of the dark current inside the second-segment capillary played an important role in the generation of high-energy electron beams, as demonstrated by quasi-three-dimensional particle-in-cell simulations.",

keywords = "particle-in-cell-simulations, laser wakefield acceleration, capillary discharge waveguide, ionization-induced injection, high-energy electron beams",

author = "Zhiyong Qin and Wentao Li and Jiaqi Liu and Jiansheng Liu and Wentao Wang and Changhai Yu and Zhijun Zhang and Xinliang Wang and Jinfeng Li and Yuxin Leng and Xiaoyan Liang and Ruxin Li and Zhizhan Xu",

year = "2022",

month = aug,

day = "10",

doi = "10.1088/1367-2630/ac81e2",

language = "English",

volume = "24",

journal = "New Journal of Physics",

issn = "1367-2630",

number = "7",

}

TY - JOUR

T1 - Multi-GeV cascaded laser wakefield acceleration in a hybrid capillary discharge waveguide

AU - Qin, Zhiyong

AU - Li, Wentao

AU - Liu, Jiaqi

AU - Liu, Jiansheng

AU - Wang, Wentao

AU - Yu, Changhai

AU - Zhang, Zhijun

AU - Wang, Xinliang

AU - Li, Jinfeng

AU - Leng, Yuxin

AU - Liang, Xiaoyan

AU - Li, Ruxin

AU - Xu, Zhizhan

PY - 2022/8/10

Y1 - 2022/8/10

N2 - Based on a 6 cm-long two-segment hybrid capillary discharge waveguide, a multi-GeV electron beam with energy up to 3.2 GeV and 9.7% rms energy spread was achieved in a cascaded laser wakefield acceleration scheme, powered by an on-target 210 TW laser pulse. The electron beam was trapped in the first segment via ionization-induced injection, and then seeded into the second segment for further acceleration. The long-distance stable guiding of the laser pulse and suppression of the dark current inside the second-segment capillary played an important role in the generation of high-energy electron beams, as demonstrated by quasi-three-dimensional particle-in-cell simulations.

AB - Based on a 6 cm-long two-segment hybrid capillary discharge waveguide, a multi-GeV electron beam with energy up to 3.2 GeV and 9.7% rms energy spread was achieved in a cascaded laser wakefield acceleration scheme, powered by an on-target 210 TW laser pulse. The electron beam was trapped in the first segment via ionization-induced injection, and then seeded into the second segment for further acceleration. The long-distance stable guiding of the laser pulse and suppression of the dark current inside the second-segment capillary played an important role in the generation of high-energy electron beams, as demonstrated by quasi-three-dimensional particle-in-cell simulations.

KW - particle-in-cell-simulations

KW - laser wakefield acceleration

KW - capillary discharge waveguide

KW - ionization-induced injection

KW - high-energy electron beams

U2 - 10.1088/1367-2630/ac81e2

DO - 10.1088/1367-2630/ac81e2

M3 - Article

VL - 24

JO - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

IS - 7

M1 - 073048

ER -

Multi-GeV cascaded laser wakefield acceleration in a hybrid capillary discharge waveguide

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