Ionization of ytterbium atoms from an excited state
Journal Article
·
· Journal of Experimental and Theoretical Physics
The cross sections of the photoionization and the electron impact-induced ionization of Yb atoms from the excited 6s6p({sup 3}P{sub 1}) state are numerically calculated. Matrix elements are computed in multielectron relativistic and nonrelativistic approximations with allowance for the superposition of configurations and a relaxation effect. The radial part of the electron wavefunction in a continuous spectrum is calculated using the solutions to one-configuration Hartree-Fock and Dirac-Fock equations. The cross sections calculated by a relativistic method are compared to those for a nonrelativistic approximation. The ratios of the radiation reduced matrix elements and the phase shifts of the wavefunctions of a continuous spectrum calculated for the 6p {epsilon}s and 6p {sup {yields} {epsilon}}d transitions are compared to the values obtained by approximating the experimental dependences of the angular distribution of photoelectrons for the photoionization by ultraviolet radiation from an oriented excited state.
- OSTI ID:
- 21443510
- Journal Information:
- Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 6 Vol. 110; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
APPROXIMATIONS
ATOM COLLISIONS
ATOMS
CALCULATION METHODS
COLLISIONS
CROSS SECTIONS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY SPECTRA
FERMIONS
FUNCTIONS
HARTREE-FOCK METHOD
IONIZATION
LEPTONS
MATHEMATICAL SOLUTIONS
MATRIX ELEMENTS
METALS
PHASE SHIFT
PHOTOIONIZATION
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
RADIATIONS
RARE EARTHS
RELAXATION
SPECTRA
ULTRAVIOLET RADIATION
WAVE FUNCTIONS
YTTERBIUM
ANGULAR DISTRIBUTION
APPROXIMATIONS
ATOM COLLISIONS
ATOMS
CALCULATION METHODS
COLLISIONS
CROSS SECTIONS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY SPECTRA
FERMIONS
FUNCTIONS
HARTREE-FOCK METHOD
IONIZATION
LEPTONS
MATHEMATICAL SOLUTIONS
MATRIX ELEMENTS
METALS
PHASE SHIFT
PHOTOIONIZATION
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
RADIATIONS
RARE EARTHS
RELAXATION
SPECTRA
ULTRAVIOLET RADIATION
WAVE FUNCTIONS
YTTERBIUM