MeV negative ion generation from ultra-intense laser interaction with a water spray

Sargis Ter-Avetisyan, B. Ramakrishna, Marco Borghesi, Domenico Doria, Matthew Zepf, Gianluca Sarri, L. Ehrentraut, A. Andreev, P.V. Nickles, S. Steinke, W. Sandner, M. Schnurer, V. Tikhonchuk

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21 Citations (Scopus)

Abstract

MeV negative oxygen ions are obtained from a water spray target irradiated by high intensity (5 x 10(19) W/cm(2)) and ultrashort (50 fs) laser pulses. Generation of negative ions is ascribed to electron-capture processes that the laser-accelerated high-energy positive ion experiences when it interacts with atoms in the spray. This mechanism implies the existence of a large number of MeV neutral oxygen atoms, which is consistent with indirect experimental evidence. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622664]
Original languageEnglish
Article number051501
Pages (from-to)051501
Number of pages1
JournalApplied Physics Letters
Volume99
Issue number5
DOIs
Publication statusPublished - 01 Aug 2011

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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