Deep-core photoionization of krypton atoms below and above the 1s ionization threshold

Författare: N. Boudjemia; K. Jänkälä; R. Püttner; T. Gejo; L. Journel; Y. Kohmura; M. Huttula; Maria Novella Piancastelli; M. Simon; M. Oura; Finland. Oulu 90014 Pob 3000 Nano & Mol Syst Res Unit Univ Oulu; []

Nyckelord: NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES;

Sammanfattning: Electronic relaxation of atomic Kr below and above the 1s ionization threshold is investigated experimentally using hard x-ray photoelectron spectroscopy. The experimental results are interpreted with the aid of relativistic Dirac-Fock calculations. The 1s orbital core-hole lifetime is extracted and the satellite's structures accompanying the photoelectron main line are assigned. Auger spectra recorded below and above the K edge are also investigated. In particular, the Auger cascade originating from vacancies of different origin in the L shell is analyzed in great detail. Competition between radiative KL versus nonradiative KLL Auger emission is emphasized.

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