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Author(s): Vieira, J.
Fonseca, R. A.
Mori, W. B.
Silva, L. O.
Date: 2014
Title: Ion motion in the wake driven by long particle bunches in plasmas
Volume: 21
Number: 5
Pages: 056705
ISSN: 1070-664X
DOI (Digital Object Identifier): 10.1063/1.4876620
Abstract: We explore the role of the background plasma ion motion in self-modulated plasma wakefield accelerators. We employ Dawson's plasma sheet model to derive expressions for the transverse plasma electric field and ponderomotive force in the narrow bunch limit. We use these results to determine the on-set of the ion dynamics and demonstrate that the ion motion could occur in self-modulated plasma wakefield accelerators. Simulations show the motion of the plasma ions can lead to the early suppression of the self-modulation instability and of the accelerating fields. The background plasma ion motion can nevertheless be fully mitigated by using plasmas with heavier plasmas.
Peerreviewed: yes
Access type: Open Access
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica

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