Post-collision interaction in the selenium L/sub 2/M/sub 4,5/M/sub 4,5/ Auger spectrum following photoionization
Journal Article
·
· Phys. Rev. Lett.; (United States)
The L/sub 2,3/M/sub 4,5/M/sub 4,5/ Auger spectrum of selenium in a variety of compounds has been measured following near-threshold photoionization of the 2p/sub 1/2/ level by monochromatic Al K..cap alpha../sub 1,2/ radiation. The energy difference between the L/sub 2/M/sub 4,5/M/sub 4,5/ and the L/sub 3/M/sub 4,5/M/sub 4,5/ Auger peaks was observed to increase by as much as 1.1 +- 0.1 eV as the 2p/sub 1/2/ binding energy approached to within 1.1 eV of the ionization threshold. The energy shifts are compared with the predictions of a semiclassical analysis by Niehaus which takes into consideration the influence of the Coulomb field of the slow photoelectron on the Auger process.
- Research Organization:
- Cyclotron Institute and Department of Chemistry, Texas AM University, College Station, Texas 77843
- OSTI ID:
- 6462458
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 42:3; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
AUGER EFFECT
BINDING ENERGY
CHEMICAL SHIFT
DATA
DATA FORMS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
EXPERIMENTAL DATA
INFORMATION
IONIZATION
IONIZING RADIATIONS
ISOLATED VALUES
LEAST SQUARE FIT
MAXIMUM-LIKELIHOOD FIT
NUMERICAL DATA
NUMERICAL SOLUTION
PHOTOIONIZATION
RADIATIONS
RELAXATION
SELENIUM
SELENIUM COMPOUNDS
SEMIMETALS
X RADIATION
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
AUGER EFFECT
BINDING ENERGY
CHEMICAL SHIFT
DATA
DATA FORMS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
EXPERIMENTAL DATA
INFORMATION
IONIZATION
IONIZING RADIATIONS
ISOLATED VALUES
LEAST SQUARE FIT
MAXIMUM-LIKELIHOOD FIT
NUMERICAL DATA
NUMERICAL SOLUTION
PHOTOIONIZATION
RADIATIONS
RELAXATION
SELENIUM
SELENIUM COMPOUNDS
SEMIMETALS
X RADIATION