Reproducibility of electron beams from laser wakefield acceleration in capillary tubes

F. G. Desforges; Martin Hansson; J. Ju; Lovisa Senje; T. L. Audet; S. Dobosz-Dufrenoy; Anders Persson; Olle Lundh; Claes-Göran Wahlström; B. Cros

doi:10.1016/j.nima.2013.10.062

Reproducibility of electron beams from laser wakefield acceleration in capillary tubes

F. G. Desforges, Martin Hansson, J. Ju, Lovisa Senje, T. L. Audet, S. Dobosz-Dufrenoy, Anders Persson, Olle Lundh, Claes-Göran Wahlström, B. Cros

Atomic Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The stability of accelerated electron beams produced by self injection of plasma electrons into the wakefield driven by a laser pulse guided inside capillary tubes is analyzed statistically in relation to laser and plasma parameters, and compared to results obtained in a gas jet. The analysis shows that reproducible electron beams are achieved with a charge of 66 pC +/- 11%, a FWHM beam divergence of 9 mrad +/- 14%, a maximum energy of 120 MeV +/- 10% and pointing fluctuations of 2.3 mrad using 10 mm long, 178 mu m diameter capillary tubes at an electron density of (10.0 +/- 1.5) x 10(18) cm(-3). Active stabilization of the laser pointing was used and laser parameters were recorded on each shot. Although the shot-to-shot laser energy fluctuations can account for a fraction of the electrons fluctuations, gas density fluctuations are suspected to be a more important source of instability. (C) 2013 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	54-59
Journal	Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume	740
DOIs	https://doi.org/10.1016/j.nima.2013.10.062
Publication status	Published - 2014

Subject classification (UKÄ)

Accelerator Physics and Instrumentation

Free keywords

Laser wakefield
Laser plasma accelerator
Electron acceleration
Capillary tube
Electron beans stability

Access to Document

10.1016/j.nima.2013.10.062

Cite this

Desforges, F. G., Hansson, M., Ju, J., Senje, L., Audet, T. L., Dobosz-Dufrenoy, S., Persson, A., Lundh, O., Wahlström, C-G., & Cros, B. (2014). Reproducibility of electron beams from laser wakefield acceleration in capillary tubes. Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 740, 54-59. https://doi.org/10.1016/j.nima.2013.10.062

@article{dcda48400f634de6b2ad9b9dbc501c04,

title = "Reproducibility of electron beams from laser wakefield acceleration in capillary tubes",

abstract = "The stability of accelerated electron beams produced by self injection of plasma electrons into the wakefield driven by a laser pulse guided inside capillary tubes is analyzed statistically in relation to laser and plasma parameters, and compared to results obtained in a gas jet. The analysis shows that reproducible electron beams are achieved with a charge of 66 pC +/- 11%, a FWHM beam divergence of 9 mrad +/- 14%, a maximum energy of 120 MeV +/- 10% and pointing fluctuations of 2.3 mrad using 10 mm long, 178 mu m diameter capillary tubes at an electron density of (10.0 +/- 1.5) x 10(18) cm(-3). Active stabilization of the laser pointing was used and laser parameters were recorded on each shot. Although the shot-to-shot laser energy fluctuations can account for a fraction of the electrons fluctuations, gas density fluctuations are suspected to be a more important source of instability. (C) 2013 Elsevier B.V. All rights reserved.",

keywords = "Laser wakefield, Laser plasma accelerator, Electron acceleration, Capillary tube, Electron beans stability",

author = "Desforges, {F. G.} and Martin Hansson and J. Ju and Lovisa Senje and Audet, {T. L.} and S. Dobosz-Dufrenoy and Anders Persson and Olle Lundh and Claes-G{\"o}ran Wahlstr{\"o}m and B. Cros",

year = "2014",

doi = "10.1016/j.nima.2013.10.062",

language = "English",

volume = "740",

pages = "54--59",

journal = "Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",

issn = "0167-5087",

publisher = "Elsevier",

}

Desforges, FG, Hansson, M, Ju, J, Senje, L, Audet, TL, Dobosz-Dufrenoy, S, Persson, A, Lundh, O , Wahlström, C-G & Cros, B 2014, 'Reproducibility of electron beams from laser wakefield acceleration in capillary tubes', Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, vol. 740, pp. 54-59. https://doi.org/10.1016/j.nima.2013.10.062

TY - JOUR

T1 - Reproducibility of electron beams from laser wakefield acceleration in capillary tubes

AU - Desforges, F. G.

AU - Hansson, Martin

AU - Ju, J.

AU - Senje, Lovisa

AU - Audet, T. L.

AU - Dobosz-Dufrenoy, S.

AU - Persson, Anders

AU - Lundh, Olle

AU - Wahlström, Claes-Göran

AU - Cros, B.

PY - 2014

Y1 - 2014

N2 - The stability of accelerated electron beams produced by self injection of plasma electrons into the wakefield driven by a laser pulse guided inside capillary tubes is analyzed statistically in relation to laser and plasma parameters, and compared to results obtained in a gas jet. The analysis shows that reproducible electron beams are achieved with a charge of 66 pC +/- 11%, a FWHM beam divergence of 9 mrad +/- 14%, a maximum energy of 120 MeV +/- 10% and pointing fluctuations of 2.3 mrad using 10 mm long, 178 mu m diameter capillary tubes at an electron density of (10.0 +/- 1.5) x 10(18) cm(-3). Active stabilization of the laser pointing was used and laser parameters were recorded on each shot. Although the shot-to-shot laser energy fluctuations can account for a fraction of the electrons fluctuations, gas density fluctuations are suspected to be a more important source of instability. (C) 2013 Elsevier B.V. All rights reserved.

AB - The stability of accelerated electron beams produced by self injection of plasma electrons into the wakefield driven by a laser pulse guided inside capillary tubes is analyzed statistically in relation to laser and plasma parameters, and compared to results obtained in a gas jet. The analysis shows that reproducible electron beams are achieved with a charge of 66 pC +/- 11%, a FWHM beam divergence of 9 mrad +/- 14%, a maximum energy of 120 MeV +/- 10% and pointing fluctuations of 2.3 mrad using 10 mm long, 178 mu m diameter capillary tubes at an electron density of (10.0 +/- 1.5) x 10(18) cm(-3). Active stabilization of the laser pointing was used and laser parameters were recorded on each shot. Although the shot-to-shot laser energy fluctuations can account for a fraction of the electrons fluctuations, gas density fluctuations are suspected to be a more important source of instability. (C) 2013 Elsevier B.V. All rights reserved.

KW - Laser wakefield

KW - Laser plasma accelerator

KW - Electron acceleration

KW - Capillary tube

KW - Electron beans stability

U2 - 10.1016/j.nima.2013.10.062

DO - 10.1016/j.nima.2013.10.062

M3 - Article

SN - 0167-5087

VL - 740

SP - 54

EP - 59

JO - Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

JF - Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

ER -

Reproducibility of electron beams from laser wakefield acceleration in capillary tubes

Abstract

Subject classification (UKÄ)

Free keywords

Access to Document

Fingerprint

Cite this