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Vacancy Cascade in the Reorganization of Krypton Ionized in an Inner Shell

Manfred O. Krause and Thomas A. Carlson

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee

Phys. Rev. 158, 18 – Published 5 June, 1967

DOI: https://doi.org/10.1103/PhysRev.158.18

Abstract

Charge distributions of krypton ions following ionization in the 1s,2s, or 2p shell are calculated under the assumption that reorganization occurs by successive steps in a vacancy cascade in which Auger and radiative transitions partake. These distributions compare favorably with experimental charge spectra arising from photo-ionization in the K or L shell (this paper), from electron capture in Kr79, and from β decay in Kr85 (Snell and Pleasonton's earlier work). If the electron-shakeoff process is also incorporated in the calculation, good agreement with experiment is achieved. Possible applications of the vacancy-cascade model are briefly discussed for other modes of inner-shell ionization and for molecular and solid-state systems. Probabilities of electron shakeoff from any shell of krypton are calculated for photo-ionization in the 1s,2s, or 2p shell, for β+ and β decay, and for Auger processes 1s2p2p,2p3p3p, and 2p3d3d.

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