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Analysis of Electron Injection in Laser Wakefield Acceleration Using Betatron Emission in Capillary Tubes

Desforges, F. G.; Paradkar, B. S.; Hansson, Martin LU ; Audet, T. L.; Ju, J.; Gallardo Gonzalez, Isabel LU ; Aurand, Bastian LU ; Lee, P.; Senje, Lovisa LU and Persson, A., et al. (2015) Conference on Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III In Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III 9514. p.95140-95140
Abstract
The dynamics of ionization-induced electron injection in the high density (similar to 1.2 x 10(19)cm(-3)) regime of Laser Wakefield Acceleration (LWFA) was investigated by analyzing betatron X-ray emission inside dielectric capillary tubes. A comparative study of the electron and betatron X-ray properties was performed for both self-injection and ionization-induced injection. Direct experimental evidence of early onset of ionization-induced injection into the plasma wave was obtained by mapping the X-ray emission zone inside the plasma. Particle-In-Cell (PIC) simulations showed that the early onset of ionization-induced injection, due to its lower trapping threshold, suppresses self-injection of electrons. An increase of X-ray fluence by... (More)
The dynamics of ionization-induced electron injection in the high density (similar to 1.2 x 10(19)cm(-3)) regime of Laser Wakefield Acceleration (LWFA) was investigated by analyzing betatron X-ray emission inside dielectric capillary tubes. A comparative study of the electron and betatron X-ray properties was performed for both self-injection and ionization-induced injection. Direct experimental evidence of early onset of ionization-induced injection into the plasma wave was obtained by mapping the X-ray emission zone inside the plasma. Particle-In-Cell (PIC) simulations showed that the early onset of ionization-induced injection, due to its lower trapping threshold, suppresses self-injection of electrons. An increase of X-ray fluence by at least a factor of two was observed in the case of ionization-induced injection due to an increased trapped charge compared to self-injection mechanism. (Less)
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type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Laser-wakefield acceleration, betatron radiation, self-injection, ionization-induced injection
in
Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III
volume
9514
pages
95140 - 95140
publisher
SPIE
conference name
Conference on Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III
external identifiers
  • wos:000357019800012
  • scopus:84946031776
ISSN
0277-786X
1996-756X
DOI
10.1117/12.2178654
language
English
LU publication?
yes
id
10c229ae-1c59-4196-9eab-507302a49c82 (old id 7791139)
date added to LUP
2015-09-02 09:55:54
date last changed
2017-11-20 15:05:50
@inproceedings{10c229ae-1c59-4196-9eab-507302a49c82,
  abstract     = {The dynamics of ionization-induced electron injection in the high density (similar to 1.2 x 10(19)cm(-3)) regime of Laser Wakefield Acceleration (LWFA) was investigated by analyzing betatron X-ray emission inside dielectric capillary tubes. A comparative study of the electron and betatron X-ray properties was performed for both self-injection and ionization-induced injection. Direct experimental evidence of early onset of ionization-induced injection into the plasma wave was obtained by mapping the X-ray emission zone inside the plasma. Particle-In-Cell (PIC) simulations showed that the early onset of ionization-induced injection, due to its lower trapping threshold, suppresses self-injection of electrons. An increase of X-ray fluence by at least a factor of two was observed in the case of ionization-induced injection due to an increased trapped charge compared to self-injection mechanism.},
  author       = {Desforges, F. G. and Paradkar, B. S. and Hansson, Martin and Audet, T. L. and Ju, J. and Gallardo Gonzalez, Isabel and Aurand, Bastian and Lee, P. and Senje, Lovisa and Persson, A. and Dufrenoy, S. Dobosz and Lundh, Olle and Maynard, G. and Monot, P. and Vay, J. L. and Wahlström, Claes-Göran and Cros, B.},
  booktitle    = {Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III},
  issn         = {0277-786X},
  keyword      = {Laser-wakefield acceleration,betatron radiation,self-injection,ionization-induced injection},
  language     = {eng},
  pages        = {95140--95140},
  publisher    = {SPIE},
  title        = {Analysis of Electron Injection in Laser Wakefield Acceleration Using Betatron Emission in Capillary Tubes},
  url          = {http://dx.doi.org/10.1117/12.2178654},
  volume       = {9514},
  year         = {2015},
}