Experimental observation of plasma wakefield growth driven by the seeded self-modulation of a proton bunch

We measure the effects of transverse wakefields driven by a relativistic proton bunch in plasma with densities of 2.1×10^14 and 7.7×10^14 electrons/cm^3. We show that these wakefields periodically defocus the proton bunch itself, consistently with the development of the seeded self-modulation proces...

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Bibliographic Details
Main Author: Turner, M. (author)
Other Authors: Adli, E. (author), Ahuja, A. (author), Apsimon, O. (author), Apsimon, R. (author), Bachmann, A. -M. (author), Barros, M. M. (author), Barrientos, D. (author), Batsch, F. (author), Batkiewicz, J. (author), Bauche, J. (author), Spitsyn, R. I. (author), Tuev, P. V. (author), Velotti, F. (author), Verra, L. (author), Verzilov, V. A. (author), Vieira, J. (author), Vincke, H. (author), Welsch, C. P. (author), Williamson, B. (author), Wing, M. (author), V. K. Berglyd Olsen (author), Woolley, B. (author), Xia, G. (author), Bernardini, M. (author), Biskup, B. (author), Boccardi, A. (author), Bogey, T. (author), Bohl, T. (author), Bracco, C. (author), Braunmuller, F. (author), Burger, S. (author), Burt G (author), S Bustamante (author), Buttenschön, B. (author), Caldwell, A. (author), Cascella, M. (author), Chappell, J. (author), Chevallay, E. (author), Chung, M. (author), Cooke, D. (author), Damerau, H. (author), Deacon, L. (author), Deubner, L. H. (author), Dexter, A. (author), Doebert, S. (author), Farmer, J. (author), Fedosseev, V. N. (author), Fior, G. (author), Fiorito, R. (author), Fonseca, R. A. (author), Friebel, F. (author), Garolfi, L. (author), Gessner, S. (author), Gorgisyan, I. (author), Gorn, A. A. (author), Granados, E. (author), Grulke, O. (author), Gschwendtner, E. (author), Guerrero, A. (author), Hansen, J. (author), Helm, A. (author), Henderson, J. R. (author), Hessler, C. (author), Hofle, W. (author), Hüther, M. (author), Ibison, M. (author), Jensen, L. (author), Jolly, S. W. (author), Keeble, F. (author), Kim, S. -Y. (author), Krausz, F. (author), Lefevre, T. (author), LeGodec, G. (author), Li, Y. (author), Liu, S. (author), Lopes, N. C. (author), Lotov, K. V. (author), Brun, L. M. (author), Martyanov, M. (author), Mazzoni, S. (author), Godoy, D. M. (author), Minakov, V. A. (author), Mitchell, J. (author), Molendijk, J. C. (author), Mompo, R. (author), Moody, J. T. (author), Moreira, M. T. (author), Muggli, P. (author), Öz, E. (author), Ozturk, E. (author), Mutin, C. (author), Pasquino, C. (author), Pardons, A. (author), Asmus, F. P. (author), Pepitone, K. (author), Perera, A. (author), Petrenko, A. (author), Pitmann, S. (author), Plyushchev, G. (author), Pukhov, A. (author), Rey, S. (author), Rieger, K. (author), Ruhl, H. (author), Schmidt, J. S. (author), Shalimova, I. A. (author), Shaposhnikova, E. (author), Sherwood, P. (author), Silva, L. O. (author), Soby, L. (author), Sosedkin, A. P. (author), Speroni, R. (author)
Format: article
Language:eng
Published: 2019
Online Access:http://hdl.handle.net/10071/17696
Country:Portugal
Oai:oai:repositorio.iscte-iul.pt:10071/17696
Description
Summary:We measure the effects of transverse wakefields driven by a relativistic proton bunch in plasma with densities of 2.1×10^14 and 7.7×10^14 electrons/cm^3. We show that these wakefields periodically defocus the proton bunch itself, consistently with the development of the seeded self-modulation process. We show that the defocusing increases both along the bunch and along the plasma by using time resolved and time-integrated measurements of the proton bunch transverse distribution. We evaluate the transverse wakefield amplitudes and show that they exceed their seed value (<15 MV/m) and reach over 300 MV/m. All these results confirm the development of the seeded self-modulation process, a necessary condition for external injection of low energy and acceleration of electrons to multi-GeV energy levels.

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