Reproducibility of electron beams from laser wakefield acceleration in capillary tubes
(2014) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 740. p.54-59- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4417546
- author
- Desforges, F. G. ; Hansson, Martin LU ; Ju, J. ; Senje, Lovisa LU ; Audet, T. L. ; Dobosz-Dufrenoy, S. ; Persson, Anders LU ; Lundh, Olle LU ; Wahlström, Claes-Göran LU and Cros, B.
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Laser wakefield, Laser plasma accelerator, Electron acceleration, Capillary tube, Electron beans stability
- in
- Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
- volume
- 740
- pages
- 54 - 59
- publisher
- Elsevier
- external identifiers
-
- wos:000331831100012
- scopus:84897641289
- ISSN
- 0167-5087
- DOI
- 10.1016/j.nima.2013.10.062
- language
- English
- LU publication?
- yes
- id
- dcda4840-0f63-4de6-b2ad-9b9dbc501c04 (old id 4417546)
- date added to LUP
- 2016-04-01 13:37:05
- date last changed
- 2022-02-19 06:29:01
@article{dcda4840-0f63-4de6-b2ad-9b9dbc501c04, 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.}}, author = {{Desforges, F. G. and Hansson, Martin and Ju, J. and Senje, Lovisa and Audet, T. L. and Dobosz-Dufrenoy, S. and Persson, Anders and Lundh, Olle and Wahlström, Claes-Göran and Cros, B.}}, issn = {{0167-5087}}, keywords = {{Laser wakefield; Laser plasma accelerator; Electron acceleration; Capillary tube; Electron beans stability}}, language = {{eng}}, pages = {{54--59}}, publisher = {{Elsevier}}, series = {{Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment}}, title = {{Reproducibility of electron beams from laser wakefield acceleration in capillary tubes}}, url = {{http://dx.doi.org/10.1016/j.nima.2013.10.062}}, doi = {{10.1016/j.nima.2013.10.062}}, volume = {{740}}, year = {{2014}}, }