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Title: Multielectron coincidence study of the double Auger decay of 3d-ionized krypton

Journal Article · · Physical Review. A
; ; ; ;  [1];  [2];  [3];  [4]
  1. Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala (Sweden)
  2. Department of Physics, P.O. Box 3000, Fin-90014 University of Oulu (Finland)
  3. Department of Physics, Stockholm University, AlbaNova University Centre, SE-106 91 Stockholm (Sweden)
  4. Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ (United Kingdom)

Multielectron coincidence data for triple ionization of krypton have been recorded above the 3d ionization threshold at two photon energies (140 and 150 eV). Three principal transition pathways have been observed, two involving double Auger transitions from Kr{sup +}, and one involving single Auger transitions from Kr{sup 2+} created by direct single-photon double ionization. The decay of the 3d{sup 9} {sup 2}D{sub 5/2,3/2} states in Kr{sup +} has been analyzed in some detail and is found to be strongly dominated by cascade processes where two electrons with well-defined energies are emitted. The decay paths leading to the 4s{sup 2}4p{sup 3} {sup 4}S, {sup 2}D, and {sup 2}P states of Kr{sup 3+} are analyzed and energies of seven intermediate states in Kr{sup 2+} are given. A preliminary investigation of the decay paths from Kr{sup +} 3d{sup 9}4p{sup 5}nl shake-up states has also been carried out.

OSTI ID:
21450810
Journal Information:
Physical Review. A, Vol. 82, Issue 4; Other Information: DOI: 10.1103/PhysRevA.82.043418; (c) 2010 The American Physical Society; ISSN 1050-2947
Country of Publication:
United States
Language:
English