Combined plasma lens and rephasing stage for a laser wakefield accelerator

Cornelia Gustafsson, Erik Löfquist, Kristoffer Svendsen, Andrea Angella, Anders Persson, Olle Lundh

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

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.
Originalspråkengelska
Artikelnummer26286
TidskriftScientific Reports
Volym14
Nummer1
DOI
StatusPublished - 2024 nov. 1

Ämnesklassifikation (UKÄ)

  • Fusion, plasma och rymdfysik

Citera det här