학술논문
Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma
Document Type
Working Paper
Author
Batsch, F.; Muggli, P.; Agnello, R.; Ahdida, C. C.; Goncalves, M. C. Amoedo; 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.; Godoy, D. Medina; Minakov, V. A.; Moody, J. T.; Moon, K.; Guzmán, P. I. Morales; 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.; Della Porta, G. Zevi
Source
Phys. Rev. Lett. 126, 164802 (2021)
Subject
Language
Abstract
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 ($\ge(4.1\pm0.4)$ MV/m), the phase of the modulation along the bunch is reproducible from event to event, with 3 to 7% (of 2$\pi$) 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.
Comment: Letter and Supplemental Material, 6 figures, 8 pages
Comment: Letter and Supplemental Material, 6 figures, 8 pages