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Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments

Mangles, SPD ; Thomas, AGR ; Thomas, AGR ; Kaluza, MC ; Kaluza, MC ; Lundh, Olle LU ; Lindau, Filip LU ; Persson, Anders LU ; Najmudin, Z and Najmudin, Z , et al. (2006) In Plasma Physics and Controlled Fusion 48(12B). p.83-90
Abstract
Laser wakefield accelerators offer the possibility of compact electron acceleration. However one of the key outstanding issues with the results reported to date is the electron beam stability. Experiments on two laser systems reveal that the contrast ratio between the ASE pedestal and main pulse is an important factor in determining the quality of the electron beam. With a high contrast ratio (10^8) the electron beam profile is a well collimated single beam having a low pointing instability (<10 mrad rms). With a lower contrast (10^6) the beam profile contains multiple beamlets which exhibit a large

pointing instability (~50 mrad rms). Ahigh contrast ratio not only improves the beam pointing stability (~6 mrad) but also... (More)
Laser wakefield accelerators offer the possibility of compact electron acceleration. However one of the key outstanding issues with the results reported to date is the electron beam stability. Experiments on two laser systems reveal that the contrast ratio between the ASE pedestal and main pulse is an important factor in determining the quality of the electron beam. With a high contrast ratio (10^8) the electron beam profile is a well collimated single beam having a low pointing instability (<10 mrad rms). With a lower contrast (10^6) the beam profile contains multiple beamlets which exhibit a large

pointing instability (~50 mrad rms). Ahigh contrast ratio not only improves the beam pointing stability (~6 mrad) but also stabilizes the electron beam energy reproducibility (5%). (Less)
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type
Contribution to journal
publication status
published
subject
in
Plasma Physics and Controlled Fusion
volume
48
issue
12B
pages
83 - 90
publisher
IOP Publishing
external identifiers
  • wos:000242552600010
  • scopus:34249864223
ISSN
0741-3335
DOI
10.1088/0741-3335/48/12B/S08
language
English
LU publication?
yes
id
4ebca32e-1e55-4901-bdab-273da5b1bbea (old id 760697)
date added to LUP
2016-04-01 12:12:40
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2020-01-12 09:25:05
@article{4ebca32e-1e55-4901-bdab-273da5b1bbea,
  abstract     = {Laser wakefield accelerators offer the possibility of compact electron acceleration. However one of the key outstanding issues with the results reported to date is the electron beam stability. Experiments on two laser systems reveal that the contrast ratio between the ASE pedestal and main pulse is an important factor in determining the quality of the electron beam. With a high contrast ratio (10^8) the electron beam profile is a well collimated single beam having a low pointing instability (&lt;10 mrad rms). With a lower contrast (10^6) the beam profile contains multiple beamlets which exhibit a large<br/><br>
pointing instability (~50 mrad rms). Ahigh contrast ratio not only improves the beam pointing stability (~6 mrad) but also stabilizes the electron beam energy reproducibility (5%).},
  author       = {Mangles, SPD and Thomas, AGR and Thomas, AGR and Kaluza, MC and Kaluza, MC and Lundh, Olle and Lindau, Filip and Persson, Anders and Najmudin, Z and Najmudin, Z and Wahlström, Claes-Göran and Murphy, CD and Murphy, CD and Kamperidis, C and Kamperidis, C and Lancaster, KL and Lancaster, KL and Divall, E and Krushelnick, K and Divall, E and Krushelnick, K},
  issn         = {0741-3335},
  language     = {eng},
  number       = {12B},
  pages        = {83--90},
  publisher    = {IOP Publishing},
  series       = {Plasma Physics and Controlled Fusion},
  title        = {Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments},
  url          = {https://lup.lub.lu.se/search/ws/files/2828425/2425954.pdf},
  doi          = {10.1088/0741-3335/48/12B/S08},
  volume       = {48},
  year         = {2006},
}