Modeling of generation, capture, and acceleration of positron beams at BELLA
Abstract
Future, compact high-energy (TeV-class) colliders will require the production and acceleration of high-quality positron beams. We explored the possibility of using a 10 GeV-class electron beam from a laser-driven plasma accelerator, such as the ones under development at the BELLA Center of LBNL, to produce a positron beam. This can be achieved by capturing the particles generated during the pair decay of Bremsstrahlung radiation that is created when the relativistic electron beam travels through a high-Z solid target. We model the production of positron beams with the Monte Carlo based Geant4 library, and their capture and acceleration in plasmas using the WarpX particle-in-cell code. In this talk we will discuss scenarios relevant to future experiments at the BELLA Center.
Work supported by the Office of Science, US DOE, Contract No. DE-AC02-05CH11231 and by the Exascale Computing Project (17-SC-20-SC), a collaborative effort of the Office of Science, US DOE and the National Nuclear Security Administration.- Publication:
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APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- 2020
- Bibcode:
- 2020APS..DPPJ04004A