Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators: state of the art and future development

D. Reboredo, S. Cipiccia, P. A. Grant, G. H. Welsh, D. W. Grant, G. McKendrick, A. Subiel, D. Maneuski, S. M. Wiggins, D. A. Jaroszynski

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

Both the laser-plasma wakefield accelerator (LWFA) and X-ray phase-contrast imaging (XPCi) are promising technologies that are attracting the attention of the scientific community. Conventional X-ray absorption imaging cannot be used as a means of imaging biological material because of low contrast. XPCi overcomes this limitation by exploiting the variation of the refraction index of materials. The contrast obtained is higher than for conventional absorption imaging and requires a lower dose. The LWFA is a new concept of acceleration where electrons are accelerated to very high energy (~150 MeV) in very short distances (mm scale) by surfing plasma waves excited by the passage of an ultra-intense laser pulse (~1018 Wcm-2) through plasma. Electrons in the LWFA can undergo transverse oscillation and emit synchrotron-like (betatron) radiation in a narrow cone around the propagation axis. The properties of the betatron radiation produced by LWFA, such as source size and spectrum, make it an excellent candidate for XPCi. In this work we present the characterization of betatron radiation produced by the LWFA in the ALPHA-X laboratory (University of Strathclyde). We show how phase contrast images can be obtained using the betatron radiation in a free-space propagation configuration and we discuss the potential and limitation of the LWFA driven XPCi.
LanguageEnglish
Title of host publicationProceedings of SPIE 9412, Medical Imaging 2015
Subtitle of host publicationPhysics of Medical Imaging
EditorsChristoph Hoeschen, Despina Kontos
Number of pages8
Volume9412
DOIs
Publication statusPublished - 25 Feb 2015

Fingerprint

plasma accelerators
phase contrast
radiation sources
laser plasmas
betatrons
radiation
x rays
transverse oscillation
electron acceleration
propagation
plasma waves
refraction
cones
synchrotrons
dosage
configurations
pulses
lasers
electrons

Keywords

  • lasers
  • phase contrast
  • plasmas
  • betatron radiation
  • adsorption
  • electrons
  • synchrotrons
  • refraction
  • free space
  • electron beams
  • X-ray imaging

Cite this

Reboredo, D., Cipiccia, S., Grant, P. A., Welsh, G. H., Grant, D. W., McKendrick, G., ... Jaroszynski, D. A. (2015). Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators: state of the art and future development. In C. Hoeschen, & D. Kontos (Eds.), Proceedings of SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging (Vol. 9412). [94120J] https://doi.org/10.1117/12.2082088
Reboredo, D. ; Cipiccia, S. ; Grant, P. A. ; Welsh, G. H. ; Grant, D. W. ; McKendrick, G. ; Subiel, A. ; Maneuski, D. ; Wiggins, S. M. ; Jaroszynski, D. A. / Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators : state of the art and future development. Proceedings of SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging. editor / Christoph Hoeschen ; Despina Kontos. Vol. 9412 2015.
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Reboredo, D, Cipiccia, S, Grant, PA, Welsh, GH, Grant, DW, McKendrick, G, Subiel, A, Maneuski, D, Wiggins, SM & Jaroszynski, DA 2015, Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators: state of the art and future development. in C Hoeschen & D Kontos (eds), Proceedings of SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging. vol. 9412, 94120J. https://doi.org/10.1117/12.2082088

Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators : state of the art and future development. / Reboredo, D.; Cipiccia, S.; Grant, P. A.; Welsh, G. H.; Grant, D. W.; McKendrick, G.; Subiel, A.; Maneuski, D.; Wiggins, S. M.; Jaroszynski, D. A.

Proceedings of SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging. ed. / Christoph Hoeschen; Despina Kontos. Vol. 9412 2015. 94120J.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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AU - Welsh, G. H.

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KW - lasers

KW - phase contrast

KW - plasmas

KW - betatron radiation

KW - adsorption

KW - electrons

KW - synchrotrons

KW - refraction

KW - free space

KW - electron beams

KW - X-ray imaging

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ER -

Reboredo D, Cipiccia S, Grant PA, Welsh GH, Grant DW, McKendrick G et al. Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators: state of the art and future development. In Hoeschen C, Kontos D, editors, Proceedings of SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging. Vol. 9412. 2015. 94120J https://doi.org/10.1117/12.2082088