Experimental (e,2e) study of resonant Auger states of Ar

B. Paripás, B. Palásthy, M. Žitnik, K. Tkési

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We present a short review of our (e,2e) measurements of electrons emitted after 2p inner-shell excitation of argon. The LMM Auger electrons are measured in coincidence with the scattered electrons, producing the considered excited state. Particularly the 2p 3/2→4s 3/2 and the dipole forbidden 2p 3/2→4p 3/2 excitations are studied. The strongest resonant Auger transitions from [2p 3/2]4s and 4p states are reliably identified in the spectra. A considerable contribution of the direct process, leading to the same final state is measured separately. The removal of this contribution - as a background - was found problematic because of a quantum mechanical interference between the direct and indirect processes.

Original languageEnglish
Pages (from-to)66-70
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Publication statusPublished - May 15 2012



  • (e,2e) Experiment
  • Coincidence spectroscopy
  • Resonant Auger process

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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