Abstract
The intrinsic constraints in the amplitude of the accelerating fields sustainable by radio-frequency accelerators demand for the pursuit of alternative and more compact acceleration schemes. Among these, plasma-based accelerators are arguably the most promising, thanks to the high-accelerating fields they can sustain, greatly exceeding the GeV/m. While plasma-based acceleration of electrons is now sufficiently mature for systematic studies in this direction, positron acceleration is still at its infancy, with limited projects currently undergoing to provide a viable test facility for further experiments. In this article, we study the feasibility of using a recently demonstrated laser-driven configuration as a relatively compact and inexpensive source of high-quality ultra-relativistic positrons for laser-driven and particle-driven plasma wakefield acceleration studies. Monte-Carlo simulations show that near-term high-intensity laser facilities can produce positron beams with high-current, femtosecond-scale duration, and sufficiently low normalised emittance at energies in the GeV range to be injected in further acceleration stages
Original language | English |
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Article number | 5279 |
Number of pages | 10 |
Journal | Scientific Reports |
Volume | 9 |
DOIs | |
Publication status | Published - 27 Mar 2019 |
Keywords
- positron
- laser
- wakefield
- plasma
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Laser-driven high-quality positron sources as possible injectors for plasma-based accelerators
Alejo, A. (Creator), Queen's University Belfast, 15 Mar 2019
DOI: 10.17034/d7dfa6e6-eb99-427e-ac99-1edefe738300
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