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Journal Articles Physics of Plasmas Year : 2012

Tuning the electron energy by controlling the density perturbation position in laser plasma accelerators

Cédric Thaury
Kim Ta Phuoc
Sébastien Corde
Guillaume Lambert
Victor Malka
M. Bloom
  • Function : Author
S. Kneip
  • Function : Author

Abstract

A density perturbation produced in an underdense plasma was used to improve the quality of electron bunches produced in the laser-plasma wakefield acceleration scheme. Quasi-monoenergetic electrons were generated by controlled injection in the longitudinal density gradients of the density perturbation. By tuning the position of the density perturbation along the laser propagation axis, a fine control of the electron energy from a mean value of 60 MeV to 120 MeV has been demonstrated with a relative energy-spread of 15 +/- 3.6%, divergence of 4 +/- 0.8 mrad and charge of 6 +/- 1.8 pC.
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Dates and versions

hal-01164046 , version 1 (17-07-2015)

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P. Brijesh, Cédric Thaury, Kim Ta Phuoc, Sébastien Corde, Guillaume Lambert, et al.. Tuning the electron energy by controlling the density perturbation position in laser plasma accelerators. Physics of Plasmas, 2012, 19 (6), pp.063104. ⟨10.1063/1.4725421⟩. ⟨hal-01164046⟩
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