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Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch

  • J. Chappell
  • , E. Adli
  • , R. Agnello
  • , M. Aladi
  • , Y. Andrebe
  • , O. Apsimon
  • , R. Apsimon
  • , A. M. Bachmann
  • , M. A. Baistrukov
  • , F. Batsch
  • , M. Bergamaschi
  • , P. Blanchard
  • , P. N. Burrows
  • , B. Buttenschön
  • , A. Caldwell
  • , E. Chevallay
  • , M. Chung
  • , D. A. Cooke
  • , H. Damerau
  • , C. Davut
  • G. Demeter, L. H. Deubner, A. Dexter, G. P. Djotyan, S. Doebert, J. Farmer, A. Fasoli, V. N. Fedosseev, R. Fiorito, R. A. Fonseca, F. Friebel, I. Furno, L. Garolfi, S. Gessner, B. Goddard, I. Gorgisyan, A. A. Gorn, E. Granados, M. Granetzny, O. Grulke, E. Gschwendtner, V. Hafych, A. Hartin, A. Helm, J. R. Henderson, A. Howling, M. Hüther, R. Jacquier, S. Jolly, I. Yu Kargapolov, M. A. Kedves, F. Keeble, M. D. Kelisani, S. Y. Kim, F. Kraus, M. Krupa, T. Lefevre, Y. Li, L. Liang, S. Liu, N. Lopes, K. V. Lotov, M. Martyanov, S. Mazzoni, D. Medina Godoy, V. A. Minakov, J. T. Moody, P. I. Morales Guzmán, M. Moreira, H. Panuganti, A. Pardons, F. Peña Asmus, A. Perera, A. Petrenko, J. Pucek, A. Pukhov, B. Ráczkevi, R. L. Ramjiawan, S. Rey, H. Ruhl, H. Saberi, O. Schmitz, E. Senes, P. Sherwood, L. O. Silva, R. I. Spitsyn, P. V. Tuev, F. Velotti, L. Verra, V. A. Verzilov, J. Vieira, C. P. Welsch, B. Williamson, M. Wing, J. Wolfenden, B. Woolley, G. Xia, M. Zepp, G. Zevi Della Porta
  • University College London
  • University of Oslo
  • Swiss Federal Institute of Technology Lausanne
  • HUN-REN HQ
  • Cockcroft Institute
  • Lancaster University
  • Technical University of Munich
  • Novosibirsk State University
  • CERN
  • University of Oxford
  • Max Planck Institute for Plasma Physics
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Ulsan National Institute of Science and Technology
  • University of Manchester
  • University of Marburg
  • University of Liverpool
  • University of Lisbon
  • TRIUMF
  • Stanford Linear Accelerator Center
  • University of Wisconsin-Madison
  • Daresbury Laboratory
  • Heinrich Heine University Düsseldorf
  • Ludwig Maximilian University of Munich

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Plasma wakefield dynamics over timescales up to 800 ps, approximately 100 plasma periods, are studied experimentally at the Advanced Wakefield Experiment (AWAKE). The development of the longitudinal wakefield amplitude driven by a self-modulated proton bunch is measured using the external injection of witness electrons that sample the fields. In simulation, resonant excitation of the wakefield causes plasma electron trajectory crossing, resulting in the development of a potential outside the plasma boundary as electrons are transversely ejected. Trends consistent with the presence of this potential are experimentally measured and their dependence on wakefield amplitude are studied via seed laser timing scans and electron injection delay scans.

Original languageEnglish
Article number011301
JournalPhysical Review Special Topics - Accelerators and Beams
Volume24
Issue number1
DOIs
Publication statusPublished - 2021

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