Energy spectra of forward-ejected electrons in multiple ionization of Ar by 1 MeV protons
作者： V V Afrosimov , A A Basalaev , B Fastrup , E Horsdal-Pedersen , K V Kashnikov
DOI: 10.1088/0953-4075/33/20/303
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摘要: Time-of-flight (TOF) techniques have been used to measure singly and multiply ionized Ar recoils in coincidence with energy-analysed, forward-ejected electrons 1 MeV H+-Ar collisions. Electron energies up 2800 eV charge states 1-4 are covered. It is shown experimentally that the peak of binary-encounter (BE) electron energy spectrum associated almost entirely single ionization Ar, whereas electron-capture-to-the continuum (ECC) multiple ionization. This shows BE originate exclusively from valence shell (the M shell) ECC predominantly an inner L shell).
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