Valence photoelectron satellites of neon
Synchrotron radiation was directed at neon gas, creating Ne/sup +/ ions in ''satellite'' states characterized by the configurations 1s/sup 2/2s/sup 2/2p/sup 4/nl, in addition to the main-line final states: 2s/sup -1/ and 2p/sup -1/. Satellite features appearing in the photoelectron spectrum were studied in the near-threshold region with photon energies from 55.2 to 99.7 eV. For three of the satellite peaks, the angular-distribution-asymmetry parameter ..beta../sub i/ varies with kinetic energy in much the same way as the asymmetry parameter of the 2p line. None of the satellites have a ..beta../sub i/ like that of the 2s line. All the satellite partial cross sections sigma/sub i/ have a kinetic-energy dependence similar to the partial cross section of the 2p main line. However, the sigma/sub i/ curves are not identical, and some deviation from the 2p intensity behavior is observed. These ..beta../sub i/ and sigma/sub i/ results are used to confirm the previous assignments of the satellite final states in neon and to consider, in general, the energy-dependent behavior of satellites near threshold.
- Research Organization:
- Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 and Department of Chemistry, University of California, Berkeley, California 94720
- OSTI ID:
- 5818874
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 31:4; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ASYMMETRY
BINDING ENERGY
BREMSSTRAHLUNG
CHARGED PARTICLES
CORRELATIONS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON CORRELATION
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY
ENERGY SPECTRA
FLUIDS
GASES
IONS
NEON
NEON IONS
NONMETALS
PHOTOELECTRON SPECTROSCOPY
RADIATIONS
RARE GASES
SPECTRA
SPECTROSCOPY
SYNCHROTRON RADIATION
THRESHOLD ENERGY
VALENCE