Abstract
A novel approach for generating and accelerating positron bunches in a plasma wake is proposed and modeled. The system consists of a plasma with an embedded thin foil into which two electron beams are shot. The first beam creates a region for accelerating and focusing positrons and the second beam provides positrons to be accelerated. Monte Carlo and 3D PIC simulations show a large number of positrons () are trapped and accelerated to over 1 m with relatively narrow energy spread and low emittance.
- Received 11 March 2008
DOI:https://doi.org/10.1103/PhysRevLett.101.124801
©2008 American Physical Society