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

Journal Article · Mon Aug 20 00:00:00 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]

---

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), Vol. 65:8; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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