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High-energy-density electron beam from interaction of two successive laser pulses with subcritical-density plasma

High-energy-density electron beam from interaction of two successive laser pulses with subcritical-density plasma

Authors :
Wei Yu
Sergey Rykovanov
S. X. Luan
J. J. Ju
H. Xu
M. Y. Yu
Jingwei Wang
Matthew Zepf
Masakatsu Murakami
Source :
Physical Review Accelerators and Beams, Vol 19, Iss 2, p 021301 (2016)
Publication Year :
2016
Publisher :
American Physical Society (APS), 2016.

Abstract

It is shown by particle-in-cell simulations that a narrow electron beam with high energy and charge density can be generated in a subcritical-density plasma by two consecutive laser pulses. Although the first laser pulse dissipates rapidly, the second pulse can propagate for a long distance in the thin wake channel created by the first pulse and can further accelerate the preaccelerated electrons therein. Given that the second pulse also self-focuses, the resulting electron beam has a narrow waist and high charge and energy densities. Such beams are useful for enhancing the target-back space-charge field in target normal sheath acceleration of ions and bremsstrahlung sources, among others.

Details

ISSN :
24699888
Volume :
19
Database :
OpenAIRE
Journal :
Physical Review Accelerators and Beams
Accession number :
edsair.doi.dedup.....5c1863228c8049086219e65026258c71
Full Text :
https://doi.org/10.1103/physrevaccelbeams.19.021301