Electron-impact excitation of Na
Journal Article
·
· Phys. Rev. A; (United States)
Total and resonance electron-impact cross sections are obtained for Na in six-state (6CC) and four-state close-coupling (4CC) approximations for the electron energy range 3.5less than or equal toEless than or equal to150 eV. Accurate configuration-interaction target wave functions are employed to represent the ground state 3 /sup 2/S and the excited states 3 /sup 2/P/sup 0/, 3 /sup 2/D, 4 /sup 2/S, 4 /sup 2/P/sup 0/, and 4 /sup 2/D. The 4CC results are in excellent agreement with calculated and measured total cross sections for Eless than or equal to5 eV. Above 10 eV our 6CC resonance cross sections are in accord with measurement, and disagreements among experimental measurements of total cross sections are resolved. We also find that the cross section sigma(3s..-->..4d) is much larger than hitherto anticipated. The mechanism responsible is suggested.
- Research Organization:
- Department of Physics, Atlanta University, Atlanta, Georgia 30314
- OSTI ID:
- 5344335
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 37:5; ISSN PLRAA
- 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
COLLISIONS
CONFIGURATION INTERACTION
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EXCITATION
FUNCTIONS
METALS
SODIUM
TOTAL CROSS SECTIONS
WAVE FUNCTIONS
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
COLLISIONS
CONFIGURATION INTERACTION
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EXCITATION
FUNCTIONS
METALS
SODIUM
TOTAL CROSS SECTIONS
WAVE FUNCTIONS