Phys. Rev. A 55, 4273–4284 (1997)X-ray fluorescence and Auger-electron coincidence spectroscopyof vacancy cascades in atomic argonReceived 20 February 1997; published in the issue dated June 1997 Argon L2,3-M2,3M2,3 Auger-electron spectra were measured in coincidence with Kα fluorescent x rays in studies of K-shell vacancy decays at several photon energies above the K threshold and on the 1s→4p resonance. The complex spectra recorded by conventional electron spectroscopy are greatly simplified when recorded in coincidence with fluorescent x rays, allowing a more detailed analysis of the vacancy cascade process. The resulting coincidence spectra are compared with Hartree-Fock calculations, which include shake-up transitions in the resonant case. Small energy shifts of the coincident electron spectra are attributed to postcollision interaction with 1s photoelectrons. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.55.4273
DOI:
10.1103/PhysRevA.55.4273
PACS:
32.80.Hd, 32.50.+d
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