• Open Access

High-quality electron beam generation in a proton-driven hollow plasma wakefield accelerator

Y. Li, G. Xia, K. V. Lotov, A. P. Sosedkin, K. Hanahoe, and O. Mete-Apsimon
Phys. Rev. Accel. Beams 20, 101301 – Published 26 October 2017

Abstract

Simulations of proton-driven plasma wakefield accelerators have demonstrated substantially higher accelerating gradients compared to conventional accelerators and the viability of accelerating electrons to the energy frontier in a single plasma stage. However, due to the strong intrinsic transverse fields varying both radially and in time, the witness beam quality is still far from suitable for practical application in future colliders. Here we demonstrate the efficient acceleration of electrons in proton-driven wakefields in a hollow plasma channel. In this regime, the witness bunch is positioned in the region with a strong accelerating field, free from plasma electrons and ions. We show that the electron beam carrying the charge of about 10% of 1 TeV proton driver charge can be accelerated to 0.6 TeV with a preserved normalized emittance in a single channel of 700 m. This high-quality and high-charge beam may pave the way for the development of future plasma-based energy frontier colliders.

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  • Received 25 July 2017

DOI:https://doi.org/10.1103/PhysRevAccelBeams.20.101301

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Accelerators & Beams

Authors & Affiliations

Y. Li1,2,*, G. Xia1,2, K. V. Lotov3,4, A. P. Sosedkin3,4, K. Hanahoe1,2, and O. Mete-Apsimon1,2

  • 1School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
  • 2Cockcroft Institute, Warrington WA4 4AD, United Kingdom
  • 3Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia
  • 4Novosibirsk State University, Novosibirsk 630090, Russia

  • *Corresponding author. yangmei.li@manchester.ac.uk

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Vol. 20, Iss. 10 — October 2017

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