Laser wakefield acceleration using wire produced double density ramps

Matthias Burza, A. Gonoskov, Kristoffer Svensson, Franck Wojda, Anders Persson, Martin Hansson, Guillaume Genoud, M. Marklund, Claes-Göran Wahlström, Olle Lundh

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

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Sammanfattning

A novel approach to implement and control electron injection into the accelerating phase of a laser wakefield accelerator is presented. It utilizes a wire, which is introduced into the flow of a supersonic gas jet creating shock waves and three regions of differing plasma electron density. If tailored appropriately, the laser plasma interaction takes place in three stages: Laser self-compression, electron injection, and acceleration in the second plasma wave period. Compared to self-injection by wave breaking of a nonlinear plasma wave in a constant density plasma, this scheme increases beam charge by up to 1 order of magnitude in the quasimonoenergetic regime. Electron acceleration in the second plasma wave period reduces electron beam divergence by approximate to 25%, and the localized injection at the density downramps results in spectra with less than a few percent relative spread. DOI: 10.1103/PhysRevSTAB.16.011301
Originalspråkengelska
Artikelnummer011301
TidskriftPhysical Review Special Topics. Accelerators and Beams
Volym16
Nummer1
DOI
StatusPublished - 2013

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik

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