Abstract
Yield spectra of multiply charged ions have been measured in coincidence with threshold electrons near the Xe ${\mathit{L}}_{3}$-shell ionization region. The ion-yield spectra exhibit characteristic profiles of postcollision interaction effects induced by Auger cascades following Xe ${\mathit{L}}_{3}$-shell ionization. The peak shifts of the spectral profiles increase gradually along with the increase of the charge states, but the peak widths are almost independent of the charge states. The spectral profiles are reproduced by a simple model based on the assumption that Coster-Kronig and Auger shake-off decays play a major role in the Auger cascades following the Xe ${\mathit{L}}_{3}$-shell vacancy creation. \textcopyright{} 1996 The American Physical Society.
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