Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients

Morales Guzmán, P. I.; Muggli, P.; Agnello, R.; Ahdida, C. C.; Aladi, M.; Amoedo Goncalves, M. C.; Andrebe, Y.; Apsimon, O.; Apsimon, R.; Bachmann, A.-M.; Baistrukov, M. A.; Batsch, F.; Bergamaschi, M.; Blanchard, P.; Braunmüller, F.; Burrows, P. N.; Buttenschön, B.; Caldwell, A.; Chappell, J.; Chevallay, E.; Chung, M.; Cooke, D. A.; Damerau, H.; Davut, C.; Demeter, G.; Dexter, A.; Doebert, S.; Farmer, J.; Fasoli, A.; Fedosseev, V. N.; Fiorito, R.; Fonseca, R. A.; Furno, I.; Gessner, S.; Gorn, A. A.; Granados, E.; Granetzny, M.; Graubner, T.; Grulke, O.; Gschwendtner, E..; Guran, E. D.; Hafych, V.; Henderson, J. R.; Hüther, M.; Kedves, M. Á.; Khudyakov, V.; Kim, S.-Y.; Kraus, F.; Krupa, M.; Lefevre, T.; Liang, L.; Lopes, N.; Lotov, K. V.; Martyanov, M.; Mazzoni, S.; Godoy, D. M.; Moody, J. T.; Moon, K.; Moreira, M.; Nechaeva, T.; Nowak, E.; Pakuza, C.; Panuganti, H.; Pardons, A.; Perera, A.; Pucek, J.; Pukhov, A.; Ráczkevi, B.; Ramjiawan, R. L.; Rey, S.; Schmitz, O.; Senes, E.; Silva, L. O.; Stollberg, C.; Sublet, A.; Topaloudis, A.; Torrado, N.; Tuev, P. V.; Turner, M.; Velotti, F.; Verra, L.; Vieira, J.; Vincke, H.; Welsch, C. P.; Wendt, M.; Wing, M.; Wolfenden, J.; Woolley, B.; Xia, G.; Zepp, M.; Della Porta, G. Z.

doi:10.1103/PhysRevAccelBeams.24.101301

Please use this identifier to cite or link to this item: http://hdl.handle.net/10071/26185

Author(s):	Morales Guzmán, P. I. Muggli, P. Agnello, R. Ahdida, C. C. Aladi, M. Amoedo Goncalves, M. C. Andrebe, Y. Apsimon, O. Apsimon, R. Bachmann, A.-M. Baistrukov, M. A. Batsch, F. Bergamaschi, M. Blanchard, P. Braunmüller, F. Burrows, P. N. Buttenschön, B. Caldwell, A. Chappell, J. Chevallay, E. Chung, M. Cooke, D. A. Damerau, H. Davut, C. Demeter, G. Dexter, A. Doebert, S. Farmer, J. Fasoli, A. Fedosseev, V. N. Fiorito, R. Fonseca, R. A. Furno, I. Gessner, S. Gorn, A. A. Granados, E. Granetzny, M. Graubner, T. Grulke, O. Gschwendtner, E.. Guran, E. D. Hafych, V. Henderson, J. R. Hüther, M. Kedves, M. Á. Khudyakov, V. Kim, S.-Y. Kraus, F. Krupa, M. Lefevre, T. Liang, L. Lopes, N. Lotov, K. V. Martyanov, M. Mazzoni, S. Godoy, D. M. Moody, J. T. Moon, K. Moreira, M. Nechaeva, T. Nowak, E. Pakuza, C. Panuganti, H. Pardons, A. Perera, A. Pucek, J. Pukhov, A. Ráczkevi, B. Ramjiawan, R. L. Rey, S. Schmitz, O. Senes, E. Silva, L. O. Stollberg, C. Sublet, A. Topaloudis, A. Torrado, N. Tuev, P. V. Turner, M. Velotti, F. Verra, L. Vieira, J. Vincke, H. Welsch, C. P. Wendt, M. Wing, M. Wolfenden, J. Woolley, B. Xia, G. Zepp, M. Della Porta, G. Z.
Date:	2021
Title:	Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients
Journal title:	Physical Review Accelerators and Beams
Volume:	24
Number:	10
Reference:	Morales Guzmán, P. I., Muggli, P., Agnello, R., Ahdida, C. C., Aladi, M., Amoedo Goncalves, M. C., Andrebe, Y., Apsimon, O., Apsimon, R., Bachmann, A.-M., Baistrukov, M. A., Batsch, F., Bergamaschi, M., Blanchard, P., Braunmüller, F., Burrows, P. N., Buttenschön, B., Caldwell, A., Chappell, J., ... Della Porta, G. Z. (2021). Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients. Physical Review Accelerators and Beams, 24(10), Article 101301. https://doi.org/10.1103/PhysRevAccelBeams.24.101301
ISSN:	2469-9888
DOI (Digital Object Identifier):	10.1103/PhysRevAccelBeams.24.101301
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 [F. Braunmller, T. Nechaeva et al. (AWAKE Collaboration), Phys. Rev. Lett. 125, 264801 (2020)PRLTAO0031-900710.1103/PhysRevLett.125.264801]: 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.
Peerreviewed:	yes
Access type:	Open Access
Appears in Collections:	IT-RI - Artigos em revistas científicas internacionais com arbitragem científica

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