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Cascade effects on the Ar [ital LMM] Auger spectrum

Journal Article · · Physical Review A; (United States)
; ; ;  [1]
  1. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States) National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States) Science and Engineering Research Council, Daresbury Laboratory, Warrington WA4 4AD (United Kingdom) Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Generally, at excitation energies well above inner-shell ionization thresholds, Auger spectra are independent of the method of excitation. A notable exception to this has been found for the Ar [ital L][sub 2,3][ital MM] Auger spectra where different results are obtained via electron-impact ionization at 2 and 4.5 keV and photoionization below the [ital K] edge at 3.17 and 2.2 keV. The differences are explained by the variation of the contribution of [ital L][sub 1] to [ital L][sub 2,3] vacancy transfers with the mode of excitation. Calculations using a simple vacancy transfer model explain the observed spectra.
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
7041818
Journal Information:
Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:1; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English