Tens GeV positron generation and acceleration in a compact plasma channel
Abstract
We propose a compact scheme for high-density and high-energy positron generation. In the scheme, the generation, compression and acceleration of positrons are encompassed in a plasma channel irradiated by an ultra intense laser. In about 20 μm, positrons are accelerated with their energy beyond 20 GeV, and are compressed with a maximal density of 4.1nc. The obtained positron beam with a wave-like density profile is accelerated via the direct laser acceleration.
- Publication:
-
Plasma Physics and Controlled Fusion
- Pub Date:
- June 2019
- DOI:
- 10.1088/1361-6587/ab07f3
- Bibcode:
- 2019PPCF...61f5014L
- Keywords:
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- positron generation;
- positron acceleration;
- γ ray emission;
- laser–plasma interaction