Combined plasma lens and rephasing stage for a laser wakefield accelerator
Gustafsson, Cornelia LU
; Löfquist, Erik
LU
; Svendsen, Kristoffer
LU
; Angella, Andrea
LU
; Persson, Anders
LU
and Lundh, Olle
LU
(2024)
In Scientific Reports
14(1).
- Abstract
- Electrons from a laser wakefield accelerator have a limited energy gain due to dephasing and are prone to emittance growth, causing a large divergence. In this paper, we experimentally show that adjusting the plasma density profile can address both issues. Shock-assisted ionisation injection is used to produce 100 MeV quasi-monoenergetic electron bunches in the primary part of the accelerator. Downstream from the accelerator, a second, independently tuneable density region is added, which can be used to either boost the energy of the electron bunches or as a plasma lens for significant divergence reduction. An additional energy gain of 25% and a 40% divergence reduction are obtained. Theoretical models validate the effects.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/462ab49d-5e1f-4ee7-bdd5-f93b0fb4f5f2
- author
- Gustafsson, Cornelia
LU
; Löfquist, Erik
LU
; Svendsen, Kristoffer
LU
; Angella, Andrea
LU
; Persson, Anders
LU
and Lundh, Olle
LU
- organization
- publishing date
- 2024-11-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Scientific Reports
- volume
- 14
- issue
- 1
- article number
- 26286
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:39487255
- scopus:85208291952
- ISSN
- 2045-2322
- DOI
- 10.1038/s41598-024-78143-6
- language
- English
- LU publication?
- yes
- id
- 462ab49d-5e1f-4ee7-bdd5-f93b0fb4f5f2
- date added to LUP
- 2024-11-12 08:27:15
- date last changed
- 2025-10-14 10:33:56
@article{462ab49d-5e1f-4ee7-bdd5-f93b0fb4f5f2,
abstract = {{Electrons from a laser wakefield accelerator have a limited energy gain due to dephasing and are prone to emittance growth, causing a large divergence. In this paper, we experimentally show that adjusting the plasma density profile can address both issues. Shock-assisted ionisation injection is used to produce 100 MeV quasi-monoenergetic electron bunches in the primary part of the accelerator. Downstream from the accelerator, a second, independently tuneable density region is added, which can be used to either boost the energy of the electron bunches or as a plasma lens for significant divergence reduction. An additional energy gain of 25% and a 40% divergence reduction are obtained. Theoretical models validate the effects.}},
author = {{Gustafsson, Cornelia and Löfquist, Erik and Svendsen, Kristoffer and Angella, Andrea and Persson, Anders and Lundh, Olle}},
issn = {{2045-2322}},
language = {{eng}},
month = {{11}},
number = {{1}},
publisher = {{Nature Publishing Group}},
series = {{Scientific Reports}},
title = {{Combined plasma lens and rephasing stage for a laser wakefield accelerator}},
url = {{http://dx.doi.org/10.1038/s41598-024-78143-6}},
doi = {{10.1038/s41598-024-78143-6}},
volume = {{14}},
year = {{2024}},
}