Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel
- Shanghai Jiao Tong Univ. (China). Key Lab. for Laser Plasma (MOE), School of Physics and Astronomy, Collaborative Innovation Centre of IFSA (CICIFSA)
- Shanghai Jiao Tong Univ. (China). Key Lab. for Laser Plasma (MOE), School of Physics and Astronomy, Collaborative Innovation Centre of IFSA (CICIFSA), Tsung-Dao Lee Inst.; Univ. of Strathclyde, Glasgow (United Kingdom). Dept. of Physics; Sci-Tech Daresbury, Cheshire (United Kingdom). Cockcroft Inst.
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of Strathclyde, Glasgow (United Kingdom). Dept. of Physics; Sci-Tech Daresbury, Cheshire (United Kingdom). Cockcroft Inst.
- Univ. of California, Los Angeles, CA (United States)
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. Furthermore, 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 then benefits from a shorter coupling distance and continuous guiding of the electrons in plasma, while suppressing transverse beam dispersion. Within 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.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1415976
- Alternate ID(s):
- OSTI ID: 1432577
- Journal Information:
- Physical Review Letters, Vol. 120, Issue 15; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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