Electron energy spectra have been measured that result from A'-shell ionization of Kr by two different mechanisms: (1) photoionization and (2) internal conversion in the decay of the isomeric state of 83 Kr. It is demonstrated experimentally that these spectra, including satellites on the low-energy side of the primary ls-electron peak, are identical. A theoretical interpretation of the identity of the spectra is given. The spectra agree well with a relativistic many-electron calculation in which the satellites are attributed to excitation and ionization of M and TV electrons during the ^-ionization process.
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