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 language | English |
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Article number | 051501 |
Pages (from-to) | 051501 |
Number of pages | 1 |
Journal | Applied Physics Letters |
Volume | 99 |
Issue number | 5 |
DOIs | |
Publication status | Published - 01 Aug 2011 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)