CERN Accelerating science

Article
Report number arXiv:2107.11369
Title Simulation and Experimental Study of Proton Bunch Self-Modulation in Plasma with Linear Density Gradients
Author(s)

Morales Guzmán, P.I. (Munich, Max Planck Inst.) ; Muggli, P. (Munich, Max Planck Inst.) ; Agnello, R. (LPHE, Lausanne) ; Ahdida, C.C. (CERN) ; Aladi, M. (Wigner RCP, Budapest) ; Amoedo Goncalves, M.C. (CERN) ; Andrebe, Y. (LPHE, Lausanne) ; Apsimon, O. (Liverpool U.) ; Apsimon, R. (Liverpool U. ; Lancaster U. (main)) ; Bachmann, A.-M (Munich, Max Planck Inst.) ; Baistrukov, M.A. (Novosibirsk, IYF ; Novosibirsk State U.) ; Batsch, F. (Munich, Max Planck Inst.) ; Bergamaschi, M. (Munich, Max Planck Inst.) ; Blanchard, P. (LPHE, Lausanne) ; Braunmüller, F. (Munich, Max Planck Inst.) ; Burrows, P.N. (JAI, UK) ; Buttenschön, B. (Garching, Max Planck Inst.) ; Caldwell, A. (Munich, Max Planck Inst.) ; Chappell, J. (University Coll. London) ; Chevallay, E. (CERN) ; Chung, M. (UNIST, Ulsan) ; Cooke, D.A. (University Coll. London) ; Damerau, H. (CERN) ; Davut, C. (Liverpool U. ; U. Manchester (main)) ; Demeter, G. (Wigner RCP, Budapest) ; Dexter, A. (Liverpool U. ; Lancaster U. (main)) ; Doebert, S. (CERN) ; Farmer, J. (Munich, Max Planck Inst. ; CERN) ; Fasoli, A. (LPHE, Lausanne) ; Fedosseev, V.N. (CERN) ; Fiorito, R. (Liverpool U.) ; Fonseca, R.A. (ISCTE, Lisbon ; Lisbon U. ; Lisbon, CFP) ; Furno, I. (LPHE, Lausanne) ; Gessner, S. (CERN ; SLAC) ; Gorn, A.A. (Novosibirsk, IYF ; Novosibirsk State U.) ; Granados, E. (CERN) ; Granetzny, M. (Wisconsin U., Madison) ; Graubner, T. (Philipps U. Marburg) ; Grulke, O. (Garching, Max Planck Inst. ; Denmark, Tech. U.) ; Gschwendtner, E. (CERN) ; Guran, E.D. (CERN) ; Hafych, V. (Munich, Max Planck Inst.) ; Henderson, J.R. (Liverpool U. ; Daresbury) ; Hüther, M. (Munich, Max Planck Inst.) ; Kedves, M.Á. (Wigner RCP, Budapest) ; Khudyakov, V. (Novosibirsk, IYF ; Heinrich Heine U., Dusseldorf) ; Kim, S.-Y (CERN ; UNIST, Ulsan) ; Kraus, F. (Philipps U. Marburg) ; Krupa, M. (CERN) ; Lefevre, T. (CERN) ; Liang, L. (Liverpool U. ; U. Manchester (main)) ; Lopes, N. (Lisbon, CFP) ; Lotov, K.V. (Novosibirsk, IYF ; Novosibirsk State U.) ; Martyanov, M. (Nizhnii Novgorod, Inst. Microstructure Phys.) ; Mazzoni, S. (CERN) ; Medina Godoy, D. (CERN) ; Moody, J.T. (Munich, Max Planck Inst.) ; Moon, K. (UNIST, Ulsan) ; Moreira, M. (Lisbon, CFP) ; Nechaeva, T. (Munich, Max Planck Inst.) ; Nowak, E. (CERN) ; Pakuza, C. (JAI, UK) ; Panuganti, H. (CERN) ; Pardons, A. (CERN) ; Perera, A. (Liverpool U.) ; Pucek, J. (Munich, Max Planck Inst.) ; Pukhov, A. (Heinrich Heine U., Dusseldorf) ; Ráczkevi, B. (Wigner RCP, Budapest) ; Ramjiawan, R.L. (CERN ; JAI, UK) ; Rey, S. (CERN) ; Schmitz, O. (Wisconsin U., Madison) ; Senes, E. (CERN) ; Silva, L.O. (Lisbon, CFP) ; Stollberg, C. (LPHE, Lausanne) ; Sublet, A. (CERN) ; Topaloudis, A. (CERN) ; Torrado, N. (Lisbon, CFP) ; Tuev, P.V. (Novosibirsk, IYF ; Novosibirsk State U.) ; Turner, M. (CERN ; LBL, Berkeley) ; Velotti, F. (CERN) ; Verra, L. (Munich, Max Planck Inst. ; CERN ; Tech. U., Munich (main)) ; Vieira, J. (Lisbon, CFP) ; Vincke, H. (CERN) ; Welsch, C.P. (Liverpool U.) ; Wendt, M. (CERN) ; Wing, M. (University Coll. London) ; Wolfenden, J. (Liverpool U.) ; Woolley, B. (CERN) ; Xia, G. (Liverpool U. ; U. Manchester (main)) ; Zepp, M. (Wisconsin U., Madison) ; Zevi Della Porta, G. (CERN)

Publication 2021-10-01
Imprint 2021-07-23
Number of pages 13
Note 13 pages, 11 figures
In: Phys. Rev. Accel. Beams 24 (2021) 101301
DOI 10.1103/PhysRevAccelBeams.24.101301 (publication)
Subject category physics.acc-ph ; Accelerators and Storage Rings ; physics.plasm-ph ; Other Fields of Physics
Accelerator/Facility, Experiment CERN AWAKE
Abstract We present numerical simulations and experimental results of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam path. Simulation results agree with the experimental results reported in arXiv:2007.14894v2: with negative gradients, the charge of the modulated bunch is lower than with positive gradients. In addition, the bunch modulation frequency varies with gradient. Simulation results show that dephasing of the wakefields with respect to the relativistic protons along the plasma is the main cause for the loss of charge. The study of the modulation frequency reveals details about the evolution of the self-modulation process along the plasma. In particular for negative gradients, the modulation frequency across time-resolved images of the bunch indicates the position along the plasma where protons leave the wakefields. Simulations and experimental results are in excellent agreement.
Copyright/License preprint: (License: arXiv nonexclusive-distrib 1.0)
publication: © 2021-2025 authors (License: CC BY 4.0)



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 Запись создана 2021-07-27, последняя модификация 2024-08-08


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