Related Researcher

Author's Photo

Chung, Moses
Intense Beam and Accelerator Laboratory (IBAL)
Research Interests
  • Accelerator, beam physics and diagnostics, plasma

Development of the self-modulation instability of a relativistic proton bunch in plasma

Cited 0 times inthomson ciCited 0 times inthomson ci
Development of the self-modulation instability of a relativistic proton bunch in plasma
Verra, L.Wyler, S.Nechaeva, T.Pucek, J.Bencini, V.Bergamaschi, M.Ranc, L.Zevi Della Porta, G.Gschwendtner, E.Muggli, P.Agnello, R.Ahdida, C. C.Amoedo, C.Andrebe, Y.Apsimon, O.Apsimon, R.Arnesano, J. M.Blanchard, P.Burrows, P. N.Buttenschoen, B.Caldwell, A.Chung, MosesDavut, C.Dexter, A. C.Doebert, S.Elverson, F. A.Farmer, J.Fasoli, A.Fonseca, R.Furno, I.Gorn, A.Granados, E.Grulke, O.Guran, E.Henderson, J.Kim, S. -y.Krupa, M.Lefevre, T.Liang, L.Lotov, K.Calderon, M. MartinezMazzoni, S.Moon, K.Morales Guzman, P. I.Pakuza, C.Pardons, A.Poimendidou, E.Ramjiawan, R. L.Rey, S.Rossel, R.Saberi, H.Senes, E.Spear, B.Stollberg, C.Sublet, A.Swain, C.Topaloudis, A.Torrado, N.Tuev, P.Turner, M.Velotti, F.
Issue Date
American Institute of Physics
PHYSICS OF PLASMAS, v.30, no.8, pp.083104
Self-modulation is a beam-plasma instability that is useful to drive large-amplitude wakefields with bunches much longer than the plasma skin depth. We present experimental results showing that, when increasing the ratio between the initial transverse size of the bunch and the plasma skin depth, the instability occurs later along the bunch, or not at all, over a fixed plasma length because the amplitude of the initial wakefields decreases. We show cases for which self-modulation does not develop, and we introduce a simple model discussing the conditions for which it would not occur after any plasma length. Changing bunch size and plasma electron density also changes the growth rate of the instability. We discuss the impact of these results on the design of a particle accelerator based on the self-modulation instability seeded by a relativistic ionization front, such as the future upgrade of the Advanced WAKefield Experiment.
Appears in Collections:
PHY_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record


  • mendeley


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.