Stable Positron Acceleration in Thin, Warm, Hollow Plasma Channels

T. Silva, L. D. Amorim, M. C. Downer, M. J. Hogan, V. Yakimenko, R. Zgadzaj, and J. Vieira
Phys. Rev. Lett. 127, 104801 – Published 3 September 2021
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Abstract

Hollow plasma channels are attractive for lepton acceleration because they provide intrinsic emittance preservation regimes. However, beam breakup instabilities dominate the dynamics. Here, we show that thin, warm hollow channels can sustain large-amplitude plasma waves ready for high-quality positron acceleration. We verify that the combination of warm electrons and thin hollow channels enables positron focusing structures. Such focusing wakefields unlock beam breakup damping mechanisms. We demonstrate that such channels emerge self-consistently during the long-term plasma dynamics in the blowout’s regime aftermath, allowing for experimental demonstration.

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  • Received 23 June 2020
  • Revised 28 May 2021
  • Accepted 9 August 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.104801

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Accelerators & BeamsPlasma Physics

Authors & Affiliations

T. Silva1,*, L. D. Amorim2, M. C. Downer3, M. J. Hogan4, V. Yakimenko4, R. Zgadzaj3, and J. Vieira1,†

  • 1GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
  • 2Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 3Department of Physics, The University of Texas at Austin, Austin, Texas 78712-1081, USA
  • 4SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

  • *thales.silva@tecnico.ulisboa.pt
  • jorge.vieira@tecnico.ulisboa.pt

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Issue

Vol. 127, Iss. 10 — 3 September 2021

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