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Title: Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel

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. 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.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3];  [4];  [3];  [3];  [5];  [1]
  1. Shanghai Jiao Tong Univ. (China). Key Lab. for Laser Plasma (MOE), School of Physics and Astronomy, Collaborative Innovation Centre of IFSA (CICIFSA)
  2. 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.
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Univ. of Strathclyde, Glasgow (United Kingdom). Dept. of Physics; Sci-Tech Daresbury, Cheshire (United Kingdom). Cockcroft Inst.
  5. Univ. of California, Los Angeles, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1415976
Alternate Identifier(s):
OSTI ID: 1432577
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 15; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Luo, J., Chen, M., Wu, W. Y., Weng, S. M., Sheng, Z. M., Schroeder, CB, Jaroszynski, D. A., Esarey, E., Leemans, W. P., Mori, W. B., and Zhang, J. Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.154801.
Luo, J., Chen, M., Wu, W. Y., Weng, S. M., Sheng, Z. M., Schroeder, CB, Jaroszynski, D. A., Esarey, E., Leemans, W. P., Mori, W. B., & Zhang, J. Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel. United States. doi:10.1103/PhysRevLett.120.154801.
Luo, J., Chen, M., Wu, W. Y., Weng, S. M., Sheng, Z. M., Schroeder, CB, Jaroszynski, D. A., Esarey, E., Leemans, W. P., Mori, W. B., and Zhang, J. Tue . "Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel". United States. doi:10.1103/PhysRevLett.120.154801. https://www.osti.gov/servlets/purl/1415976.
@article{osti_1415976,
title = {Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel},
author = {Luo, J. and Chen, M. and Wu, W. Y. and Weng, S. M. and Sheng, Z. M. and Schroeder, CB and Jaroszynski, D. A. and Esarey, E. and Leemans, W. P. and Mori, W. B. and Zhang, J.},
abstractNote = {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.},
doi = {10.1103/PhysRevLett.120.154801},
journal = {Physical Review Letters},
number = 15,
volume = 120,
place = {United States},
year = {2018},
month = {4}
}

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