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Investigation of ionization-induced electron injection in a wakefield driven by laser inside a gas cell

Audet, T. L.; Hansson, M. LU ; Lee, P.; Desforges, F. G.; Maynard, G.; Dobosz Dufrénoy, S.; Lehe, R.; Vay, J. L.; Aurand, B. LU and Persson, A. LU , et al. (2016) In Physics of Plasmas 23(2).
Abstract

Ionization-induced electron injection was investigated experimentally by focusing a driving laser pulse with a maximum normalized potential of 1.2 at different positions along the plasma density profile inside a gas cell, filled with a gas mixture composed of 99%H2+1%N2. Changing the laser focus position relative to the gas cell entrance controls the accelerated electron bunch properties, such as the spectrum width, maximum energy, and accelerated charge. Simulations performed using the 3D particle-in-cell code WARP with a realistic density profile give results that are in good agreement with the experimental ones. The interest of this regime for optimizing the bunch charge in a selected energy window is discussed.

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Contribution to journal
publication status
published
subject
in
Physics of Plasmas
volume
23
issue
2
publisher
American Institute of Physics
external identifiers
  • Scopus:84959017545
ISSN
1070-664X
DOI
10.1063/1.4942033
language
English
LU publication?
yes
id
559b8a8a-ebb1-41de-8902-083124d7b79f
date added to LUP
2016-09-20 08:29:28
date last changed
2016-10-21 08:30:54
@misc{559b8a8a-ebb1-41de-8902-083124d7b79f,
  abstract     = {<p>Ionization-induced electron injection was investigated experimentally by focusing a driving laser pulse with a maximum normalized potential of 1.2 at different positions along the plasma density profile inside a gas cell, filled with a gas mixture composed of 99%H2+1%N2. Changing the laser focus position relative to the gas cell entrance controls the accelerated electron bunch properties, such as the spectrum width, maximum energy, and accelerated charge. Simulations performed using the 3D particle-in-cell code WARP with a realistic density profile give results that are in good agreement with the experimental ones. The interest of this regime for optimizing the bunch charge in a selected energy window is discussed.</p>},
  author       = {Audet, T. L. and Hansson, M. and Lee, P. and Desforges, F. G. and Maynard, G. and Dobosz Dufrénoy, S. and Lehe, R. and Vay, J. L. and Aurand, B. and Persson, A. and Gallardo González, I. and Maitrallain, A. and Monot, P. and Wahlström, C. G. and Lundh, O. and Cros, Brigitte},
  issn         = {1070-664X},
  language     = {eng},
  month        = {02},
  number       = {2},
  publisher    = {ARRAY(0xa5309d8)},
  series       = {Physics of Plasmas},
  title        = {Investigation of ionization-induced electron injection in a wakefield driven by laser inside a gas cell},
  url          = {http://dx.doi.org/10.1063/1.4942033},
  volume       = {23},
  year         = {2016},
}