Overcritical electron acceleration and betatron radiation in the bubble-like structure formed by re-injected electrons in a tailored transverse plasma

Zhao Yuan; Lu Haiyang; Zhou Cangtao; Zhu Jungao

doi:10.1063/5.0121558

Volume 8 Issue 1

Jan. 2023

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Zhao Yuan, Lu Haiyang, Zhou Cangtao, Zhu Jungao. Overcritical electron acceleration and betatron radiation in the bubble-like structure formed by re-injected electrons in a tailored transverse plasma[J]. Matter and Radiation at Extremes, 2023, 8(1): 014403. doi: 10.1063/5.0121558

Citation:

Zhao Yuan, Lu Haiyang, Zhou Cangtao, Zhu Jungao. Overcritical electron acceleration and betatron radiation in the bubble-like structure formed by re-injected electrons in a tailored transverse plasma[J]. Matter and Radiation at Extremes, 2023, 8(1): 014403. doi: 10.1063/5.0121558

Citation:

Zhao Yuan, Lu Haiyang, Zhou Cangtao, Zhu Jungao. Overcritical electron acceleration and betatron radiation in the bubble-like structure formed by re-injected electrons in a tailored transverse plasma[J]. Matter and Radiation at Extremes, 2023, 8(1): 014403. doi: 10.1063/5.0121558

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Overcritical electron acceleration and betatron radiation in the bubble-like structure formed by re-injected electrons in a tailored transverse plasma

doi: 10.1063/5.0121558

Zhao Yuan^{1, 2, 3},
Lu Haiyang^{1, 2
,
,
,},
Zhou Cangtao^{1, 2, 3
,},
Zhu Jungao^{1, 2}

1.
Center for Advanced Material Diagnostic Technology and College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, People’s Republic of China
2.
Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Shenzhen Technology University, Shenzhen 518118, People’s Republic of China
3.
College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People’s Republic of China

More Information

Corresponding author: a)Author to whom correspondence should be addressed: luhaiyang@sztu.edu.cn
Received Date: 2022-08-18
Accepted Date: 2022-11-15

Available Online: 2023-01-01

Publish Date: 2023-01-01

Abstract

Abstract

We present a novel scheme for dense electron acceleration driven by the laser irradiation of a near-critical-density plasma. The electron reflux effect in a transversely tailored plasma is particularly enhanced in the area of peak density. We observe a bubble-like distribution of re-injected electrons, which forms a strong quasistatic electromagnetic field that can accelerate electrons longitudinally while also preserving the electron transverse emittance. Simulation results demonstrate that over-dense electrons could be trapped in such an artificial bubble and accelerated to an energy of ∼500MeV. The obtained relativistic electron beam can reach a total charge of up to 0.26 nC and is well collimated with a small divergence of 17 mrad. Moreover, the wavelength of electron oscillation is noticeably reduced due to the shaking of the bubble structure in the laser field. As a result, the energy of the produced photons is substantially increased to the γ range. This new regime provides a path to generating high-charge electron beams and high-energy γ-ray sources.

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References(40)

References

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