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Photoionization of the sodium atom and electron scattering from ionized sodium

Thesis/Dissertation ·
OSTI ID:5411678
The method of polarized orbitals developed by Temkin has been used to calculate the photoionization cross sections from sodium atoms, from threshold to about 60 eV. The polarized orbitals are calculated by using Sternheimer's equation. The polarizability of Na/sup +/ is found to be 1.091 a/sub 0//sup 3/, which is very close to the experimental value. The scattering equation is solved in the exchange, the exchange-adiabatic and the polarized orbital approximations. Both the bound state and the continuum state wave functions are solved in the same approximation, consistently. The bound state wave functions for the sodium atom are calculated by finding the binding energy for the 3s electron corresponding to each approximation. The scattering state wave function is found for the p wave, needed for photoionization cross sections, as well as for the s and d waves for use in the (e + Na/sup +/) scattering problem. The phase shifts obtained for s, p, and d waves for the e + Na/sup +/ system are also believed to be very accurate. These phase shifts are used to calculate the differential cross sections and the phase shifts, as well as these cross sections, agree very well with other available results.
Research Organization:
Maryland Univ., College Park (USA)
OSTI ID:
5411678
Country of Publication:
United States
Language:
English

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Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
BOUND STATE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
ELECTRICAL PROPERTIES
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 10-100
FUNCTIONS
INFORMATION
ION COLLISIONS
IONIZATION
IONS
METALS
NUMERICAL DATA
PHASE SHIFT
PHOTOIONIZATION
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
PHYSICAL PROPERTIES
POLARIZABILITY
SCATTERING
SODIUM
SODIUM IONS
THEORETICAL DATA
WAVE FUNCTIONS