Argon-photoion--Auger-electron coincidence measurements following K -shell excitation by synchrotron radiation

Journal Article · Mon Aug 20 04:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.65.988· OSTI ID:6416438

Levin, J C; Biedermann, C; Keller, N; Liljeby, L; Sellin, I A ^[1]; Lindle, D W ^[2]

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1. Department of Physics, University of Tennessee, Knoxville, TN (USA) Oak Ridge National Laboratory, Oak Ridge, TN (USA)
2. National Institute of Standards and Technology, Gaithersburg, MD (USA)

Argon photoion spectra have been obtained for the first time in coincidence with {ital K}-{ital LL} and {ital K}-{ital LM} Auger electrons, as a function of photon energy. The simplified charge distributions which result exhibit a much more pronounced photon-energy dependence than do the more complicated noncoincident spectra. In the near-{ital K}-threshold region, Rydberg shakeoff of {ital np} levels, populated by resonant excitation of {ital K} electrons, occurs with significant probability, as do double-Auger processes and recapture of the {ital K} photoelectron through postcollision interaction.

• DOE Contract Number: AC05-84OR21400; AC02-76CH00016
• OSTI ID: 6416438
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:8; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ARGON
AUGER EFFECT
AUTOIONIZATION
BREMSSTRAHLUNG
COINCIDENCE SPECTROMETRY
DATA
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
EMISSION SPECTRA
ENERGY
ENERGY DEPENDENCE
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
INNER-SHELL IONIZATION
IONIZATION
K SHELL
NONMETALS
NUMERICAL DATA
RADIATIONS
RARE GASES
RESONANCE ABSORPTION
RYDBERG STATES
SPECTRA
SYNCHROTRON RADIATION
THRESHOLD ENERGY
TIME-OF-FLIGHT METHOD