Low emittance, high brilliance relativistic electron beams from a laser-plasma accelerator

E. Brunetti, Richard Shanks, G. G. Manahan, M. R. Islam, B. Ersfeld, M. P. Anania, S. Cipiccia, R. C. Issac, G. Raj, G. Vieux, G. H. Welsh, S. M. Wiggins, D. A. Jaroszynski

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

Progress in laser wakefield accelerators indicates their suitability as a driver of compact free-electron lasers (FELs). High brightness is defined by the normalized transverse emittance, which should be less than 1 pi mm mrad for an x-ray FEL. We report high-resolution measurements of the emittance of 125 MeV, monoenergetic beams from a wakefield accelerator. An emittance as low as 1.1 +/- 0.1 pi mm mrad is measured using a pepper-pot mask. This sets an upper limit on the emittance, which is comparable with conventional linear accelerators. A peak transverse brightness of 5 x 10(15) Am-1 rad(-1) makes it suitable for compact XUV FELs.

LanguageEnglish
Article number215007
Number of pages4
JournalPhysical Review Letters
Volume105
Issue number21
DOIs
Publication statusPublished - 19 Nov 2010

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plasma accelerators
relativistic electron beams
emittance
laser plasmas
free electron lasers
brightness
accelerators
peppers
x ray lasers
linear accelerators
masks
high resolution
lasers

Keywords

  • wakefield accelerator
  • driven

Cite this

Brunetti, E. ; Shanks, Richard ; Manahan, G. G. ; Islam, M. R. ; Ersfeld, B. ; Anania, M. P. ; Cipiccia, S. ; Issac, R. C. ; Raj, G. ; Vieux, G. ; Welsh, G. H. ; Wiggins, S. M. ; Jaroszynski, D. A. / Low emittance, high brilliance relativistic electron beams from a laser-plasma accelerator. In: Physical Review Letters. 2010 ; Vol. 105, No. 21.
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Low emittance, high brilliance relativistic electron beams from a laser-plasma accelerator. / Brunetti, E.; Shanks, Richard; Manahan, G. G.; Islam, M. R.; Ersfeld, B.; Anania, M. P.; Cipiccia, S.; Issac, R. C.; Raj, G.; Vieux, G.; Welsh, G. H.; Wiggins, S. M.; Jaroszynski, D. A.

In: Physical Review Letters, Vol. 105, No. 21, 215007 , 19.11.2010.

Research output: Contribution to journalArticle

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AU - Brunetti, E.

AU - Shanks, Richard

AU - Manahan, G. G.

AU - Islam, M. R.

AU - Ersfeld, B.

AU - Anania, M. P.

AU - Cipiccia, S.

AU - Issac, R. C.

AU - Raj, G.

AU - Vieux, G.

AU - Welsh, G. H.

AU - Wiggins, S. M.

AU - Jaroszynski, D. A.

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AB - Progress in laser wakefield accelerators indicates their suitability as a driver of compact free-electron lasers (FELs). High brightness is defined by the normalized transverse emittance, which should be less than 1 pi mm mrad for an x-ray FEL. We report high-resolution measurements of the emittance of 125 MeV, monoenergetic beams from a wakefield accelerator. An emittance as low as 1.1 +/- 0.1 pi mm mrad is measured using a pepper-pot mask. This sets an upper limit on the emittance, which is comparable with conventional linear accelerators. A peak transverse brightness of 5 x 10(15) Am-1 rad(-1) makes it suitable for compact XUV FELs.

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