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Title: Ion acceleration from laser-driven electrostatic shocks
Authors: Fiuza, F.
Stockem, A.
Boella, E.
Fonseca, R. A.
Silva, L. O.
Haberberger, D.
Tochitsky, S.
Mori, W. B.
Joshi, C.
Issue Date: 2013
Publisher: American Physical Society
Abstract: Multi-dimensional particle-in-cell simulations are used to study the generation of electrostatic shocks in plasma and the reflection of background ions to produce high-quality and high-energy ion beams. Electrostatic shocks are driven by the interaction of two plasmas with different density and/or relative drift velocity. The energy and number of ions reflected by the shock increase with increasing density ratio and relative drift velocity between the two interacting plasmas. It is shown that the interaction of intense lasers with tailored near-critical density plasmas allows for the efficient heating of the plasma electrons and steepening of the plasma profile at the critical density interface, leading to the generation of high-velocity shock structures and high-energy ion beams. Our results indicate that high-quality 200 MeV shock-accelerated ion beams required for medical applications may be obtained with current laser systems.
Description: WOS:000320000000092
Peer reviewed: yes
DOI: 10.1063/1.4801526
ISSN: 1070-664X
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica

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