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.
Publication date
November 2010
DOI Publisher
American Physical Society (APS)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
Add to ORKG