Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma

We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude [≥(4.1±0.4)  MV/m], the phase of the modulation along the bunch is reproducible f...

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Detalles Bibliográficos
Autores principales: Batsch, F., Muggli, P., Agnello, R., Ahdida, C.C., Amoedo Goncalves, M.C., Andrebe, Y., Apsimon, O., Apsimon, R., Bachmann, A.M., Baistrukov, M.A., 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., Deubner, H.L., Doebert, S., Farmer, J., Fasoli, A., Fedosseev, V.N., Fiorito, R., Fonseca, R.A., Friebel, F., Furno, I., Garolfi, L., Gessner, S., Gorgisyan, I., Gorn, A.A., Granados, E., Granetzny, M., Graubner, T., Grulke, O., Gschwendtner, E., Hafych, V., Helm, A., Henderson, J.R., Hüther, M., Kargapolov, I. Yu., Kim, S.Y., Kraus, F., Krupa, M., Lefevre, T., Liang, L., Liu, S., Lopes, N., Lotov, K.V., Martyanov, M., Mazzoni, S., Medina Godoy, D., Minakov, V.A., Moody, J.T., Moon, K., Morales Guzmán, P.I., Moreira, M., Nechaeva, T., Nowak, E., Pakuza, C., Panuganti, H., Pardons, A., Perera, A., Pucek, J., Pukhov, A., Ramjiawan, R.L., Rey, S., Rieger, K., Schmitz, O., Senes, E., Silva, L.O., Speroni, R., Spitsyn, R.I., Stollberg, C., Sublet, A., Topaloudis, A., Torrado, N., Tuev, P.V., Turner, M., Velotti, F., Verra, L., Verzilov, V.A., Vieira, J., Vincke, H., Welsch, C.P., Wendt, M., Wing, M., Wiwattananon, P., Wolfenden, J., Woolley, B., Xia, G., Zepp, M., Zevi Della Porta, G.
Lenguaje:eng
Publicado: 2020
Materias:
physics.acc-ph
Accelerators and Storage Rings
physics.plasm-ph
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.126.164802
http://cds.cern.ch/record/2749411
Descripción
Sumario:We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude [≥(4.1±0.4)  MV/m], the phase of the modulation along the bunch is reproducible from event to event, with 3%–7% (of 2π) rms variations all along the bunch. The phase is not reproducible for lower initial amplitudes. We observe the transition between these two regimes. Phase reproducibility is essential for deterministic external injection of particles to be accelerated.

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