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  • Near-K-Edge Double and Trip...
    Müller, A; Borovik, A; Bari, S; Buhr, T; Holste, K; Martins, M; Perry-Saßmannshausen, A; Phaneuf, R A; Reinwardt, S; Ricz, S; Schubert, K; Schippers, S

    Physical review letters, 2018-Mar-30, Letnik: 120, Številka: 13
    Journal Article

    Double and triple detachment of the F^{-}(1s^{2}2s^{2}2p^{6}) negative ion by a single photon have been investigated in the photon energy range 660 to 1000 eV. The experimental data provide unambiguous evidence for the dominant role of direct photodouble detachment with a subsequent single-Auger process in the reaction channel leading to F^{2+} product ions. Absolute cross sections were determined for the direct removal of a (1s+2p) pair of electrons from F^{-} by the absorption of a single photon.