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Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel
- Source :
- Phys. Rev. Lett. 120, 154801 (2018)
- Publication Year :
- 2017
-
Abstract
- Multistage coupling of laser-wakefield accelerators is essential to overcome laser energy depletion for high-energy applications such as TeV level electron-positron colliders. Current staging schemes feed subsequent laser pulses into stages using plasma mirrors, while controlling electron beam focusing with plasma lenses. Here a more compact and efficient scheme is proposed to realize simultaneous coupling of the electron beam and the laser pulse into a second stage. A curved channel with transition segment is used to guide a fresh laser pulse into a subsequent straight channel, while allowing the electrons to propagate in a straight channel. This scheme benefits from a shorter coupling distance and continuous guiding of the electrons in plasma, while suppressing transverse beam dispersion. With moderate laser parameters, particle-in-cell simulations demonstrate that the electron beam from a previous stage can be efficiently injected into a subsequent stage for further acceleration, while maintaining high capture efficiency, stability, and beam quality.<br />Comment: 6 pages, 4 figures
- Subjects :
- Physics - Plasma Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 120, 154801 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1712.09032
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.120.154801