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Collimated x-rays emitted through laser-driven plasma lensing

Gustafsson, C. LU ; Löfquist, E. LU ; Björklund Svensson, J. LU ; Angella, A. LU ; Svendsen, K. LU ; Persson, A. LU and Lundh, O. LU orcid (2025) 6th European Advanced Accelerator Concepts Workshop, EAAC 2023 3124.
Abstract

The Laser wakefield accelerator (LWFA) can be used as a powerful x-ray source, with diverse applications, such as medical imaging, tomography and x-ray absorption spectroscopy for warm dense matter. However, due to the large x-ray divergence, typically on the order of tens of milliradians at full width at half maximum, an effective beam transport to the sample and subsequent detection becomes challenging which limits the signal to noise ratio. By using a laser-plasma lens of high density positioned a few millimetres downstream from the LWFA, x-ray radiation with only a few milliradians divergence is produced. The lens consists of nitrogen gas ionised by the drive laser, within which a wake is excited mainly by the LWFA electron bunch.... (More)

The Laser wakefield accelerator (LWFA) can be used as a powerful x-ray source, with diverse applications, such as medical imaging, tomography and x-ray absorption spectroscopy for warm dense matter. However, due to the large x-ray divergence, typically on the order of tens of milliradians at full width at half maximum, an effective beam transport to the sample and subsequent detection becomes challenging which limits the signal to noise ratio. By using a laser-plasma lens of high density positioned a few millimetres downstream from the LWFA, x-ray radiation with only a few milliradians divergence is produced. The lens consists of nitrogen gas ionised by the drive laser, within which a wake is excited mainly by the LWFA electron bunch. As the LWFA electrons propagate through this second plasma they generate strong transverse fields, which focuses the beam and produces bright x-rays. In this work, the preliminary parametric study of the x-ray lens radiation is presented.

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author
; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Journal of Physics: Conference Series
volume
3124
article number
012011
edition
1
conference name
6th European Advanced Accelerator Concepts Workshop, EAAC 2023
conference location
Italy
conference dates
2023-09-17 - 2023-09-23
external identifiers
  • scopus:105027169643
DOI
10.1088/1742-6596/3124/1/012011
language
English
LU publication?
yes
id
8e9b3e37-0de7-42a8-bf6a-7110348001b3
date added to LUP
2026-02-13 15:27:22
date last changed
2026-02-13 15:28:05
@inproceedings{8e9b3e37-0de7-42a8-bf6a-7110348001b3,
  abstract     = {{<p>The Laser wakefield accelerator (LWFA) can be used as a powerful x-ray source, with diverse applications, such as medical imaging, tomography and x-ray absorption spectroscopy for warm dense matter. However, due to the large x-ray divergence, typically on the order of tens of milliradians at full width at half maximum, an effective beam transport to the sample and subsequent detection becomes challenging which limits the signal to noise ratio. By using a laser-plasma lens of high density positioned a few millimetres downstream from the LWFA, x-ray radiation with only a few milliradians divergence is produced. The lens consists of nitrogen gas ionised by the drive laser, within which a wake is excited mainly by the LWFA electron bunch. As the LWFA electrons propagate through this second plasma they generate strong transverse fields, which focuses the beam and produces bright x-rays. In this work, the preliminary parametric study of the x-ray lens radiation is presented.</p>}},
  author       = {{Gustafsson, C. and Löfquist, E. and Björklund Svensson, J. and Angella, A. and Svendsen, K. and Persson, A. and Lundh, O.}},
  booktitle    = {{Journal of Physics: Conference Series}},
  language     = {{eng}},
  title        = {{Collimated x-rays emitted through laser-driven plasma lensing}},
  url          = {{http://dx.doi.org/10.1088/1742-6596/3124/1/012011}},
  doi          = {{10.1088/1742-6596/3124/1/012011}},
  volume       = {{3124}},
  year         = {{2025}},
}