1. Experimental Study of Wakefields Driven by a Self-Modulating Proton Bunch in Plasma
- Author
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L. Garolfi, M. Aladi, B. Williamson, Simon Jolly, J. T. Moody, P. I. Morales Guzmán, H. Panuganti, Michele Bergamaschi, V. N. Fedosseev, M. A. Baistrukov, M. Krupa, A. A. Gorn, Eugenio Senes, Alan Howling, M. Hüther, Erik Adli, Robert Apsimon, G. Demeter, Oliver Schmitz, Luis O. Silva, Alexander Pukhov, John P. Farmer, A. Helm, S. Rey, Jorge Vieira, Sung Youb Kim, V. A. Verzilov, Ivo Furno, Benjamin Woolley, B. Buttenschön, Patric Muggli, Linbo Liang, S. Liu, Florian Kraus, R. Jacquier, Olaf Grulke, Ans Pardons, J. Pucek, Philip Burrows, I. Yu. Kargapolov, M. Moreira, F. Friebel, B. Ráczkevi, T. Lefevre, F. Batsch, Allen Caldwell, H. Damerau, R. Agnello, S. Doebert, Stefano Mazzoni, I. Gorgisyan, M. Martyanov, Guoxing Xia, L. Verra, L. H. Deubner, Peter Sherwood, F. Peña Asmus, D. Medina Godoy, M. Granetzny, Rebecca Ramjiawan, Anthony Hartin, A. Perera, Brennan Goddard, F. Keeble, M. D. Kelisani, James Henderson, Ambrogio Fasoli, A.-M. Bachmann, Spencer Gessner, V. Hafych, Eric Chevallay, N. Lopes, Ralph Fiorito, V. A. Minakov, H. Saberi, D. A. Cooke, M. Zepp, Konstantin Lotov, P. Blanchard, Yang Li, Moses Chung, J. Wolfenden, Matthew Wing, Eduardo Granados, M. Á. Kedves, O. Apsimon, Alexey Petrenko, Hartmut Ruhl, P. V. Tuev, J. Chappell, G. P. Djotyan, C. Davut, Amos Dexter, Edda Gschwendtner, Y. Andrebe, Francesco Velotti, M. Turner, G. Zevi della Porta, Carsten Welsch, and Ricardo Fonseca
- Subjects
Accelerator Physics (physics.acc-ph) ,Nuclear and High Energy Physics ,Physics and Astronomy (miscellaneous) ,Proton ,Other Fields of Physics ,FOS: Physical sciences ,Context (language use) ,Electron ,Ciências Naturais::Ciências Físicas [Domínio/Área Científica] ,01 natural sciences ,Nuclear physics ,Physics::Plasma Physics ,physics.plasm-ph ,0103 physical sciences ,010306 general physics ,physics.acc-ph ,awake ,Physics ,010308 nuclear & particles physics ,Final energy ,Surfaces and Interfaces ,Plasma ,Radius ,Accelerators and Storage Rings ,Physics - Plasma Physics ,Plasma Physics (physics.plasm-ph) ,Transverse plane ,Amplitude ,beam ,Physics::Accelerator Physics ,Physics - Accelerator Physics - Abstract
We study experimentally the longitudinal and transverse wakefields driven by a highly relativistic proton bunch during self-modulation in plasma. We show that the wakefields' growth and amplitude increase with increasing seed amplitude as well as with the proton bunch charge in the plasma. We study transverse wakefields using the maximum radius of the proton bunch distribution measured on a screen downstream from the plasma. We study longitudinal wakefields by externally injecting electrons and measuring their final energy. Measurements agree with trends predicted by theory and numerical simulations and validate our understanding of the development of self-modulation. Experiments were performed in the context of the Advanced Wakefield Experiment (AWAKE)., 4 figures
- Published
- 2020
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