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On the stability of laser wakefield electron accelerators in the monoenergetic regime

Mangles, S. P. D.; Thomas, A. G. R.; Lundh, Olle LU ; Lindau, Filip LU ; Kaluza, M. C.; Persson, Anders LU ; Wahlström, Claes-Göran LU ; Krushelnick, K. and Najmudin, Z. (2007) In Physics of Plasmas 14(5).
Abstract
The effects of plasma density and laser energy on the stability of laser produced monoenergetic electron beams are investigated. Fluctuations in the principal beam parameters, namely, electron energy, energy-spread, charge, and pointing, are demonstrated to be minimized at low densities. This improvement in stability is attributed to the reduced time for pulse evolution required before self-injection occurs; i.e., that the pulse is closest to the matched conditions for these densities. It is also observed that electrons are only consistently produced above a density-dependent energy threshold. These observations are consistent with there being a threshold intensity (a(0)greater than or similar to 3) required for the occurrence of... (More)
The effects of plasma density and laser energy on the stability of laser produced monoenergetic electron beams are investigated. Fluctuations in the principal beam parameters, namely, electron energy, energy-spread, charge, and pointing, are demonstrated to be minimized at low densities. This improvement in stability is attributed to the reduced time for pulse evolution required before self-injection occurs; i.e., that the pulse is closest to the matched conditions for these densities. It is also observed that electrons are only consistently produced above a density-dependent energy threshold. These observations are consistent with there being a threshold intensity (a(0)greater than or similar to 3) required for the occurrence of self-injection after accounting for pulse compression. (C) 2007 American Institute of Physics. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Physics of Plasmas
volume
14
issue
5
publisher
American Institute of Physics
external identifiers
  • wos:000246892900133
  • scopus:34249870829
ISSN
1070-664X
DOI
10.1063/1.2436481
language
English
LU publication?
yes
id
6d623814-26da-434e-9981-f14cc5d1b91d (old id 649088)
date added to LUP
2007-12-13 12:42:59
date last changed
2017-05-28 03:30:57
@article{6d623814-26da-434e-9981-f14cc5d1b91d,
  abstract     = {The effects of plasma density and laser energy on the stability of laser produced monoenergetic electron beams are investigated. Fluctuations in the principal beam parameters, namely, electron energy, energy-spread, charge, and pointing, are demonstrated to be minimized at low densities. This improvement in stability is attributed to the reduced time for pulse evolution required before self-injection occurs; i.e., that the pulse is closest to the matched conditions for these densities. It is also observed that electrons are only consistently produced above a density-dependent energy threshold. These observations are consistent with there being a threshold intensity (a(0)greater than or similar to 3) required for the occurrence of self-injection after accounting for pulse compression. (C) 2007 American Institute of Physics.},
  author       = {Mangles, S. P. D. and Thomas, A. G. R. and Lundh, Olle and Lindau, Filip and Kaluza, M. C. and Persson, Anders and Wahlström, Claes-Göran and Krushelnick, K. and Najmudin, Z.},
  issn         = {1070-664X},
  language     = {eng},
  number       = {5},
  publisher    = {American Institute of Physics},
  series       = {Physics of Plasmas},
  title        = {On the stability of laser wakefield electron accelerators in the monoenergetic regime},
  url          = {http://dx.doi.org/10.1063/1.2436481},
  volume       = {14},
  year         = {2007},
}