Electron-impact excitation of the (3d{sup 10}4s){sup 2}S{sub 1/2}{yields}(3d{sup 9}4s{sup 2}){sup 2}D{sub 5/2,3/2} transitions in copper atoms
- Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311 (United States)
Results from a joint experimental and theoretical investigation of electron impact excitation of the (3d{sup 10}4s){sup 2}S{sub 1/2}{yields}(3d{sup 9}4s{sup 2}){sup 2}D{sub 5/2,3/2} transitions in copper atoms are presented. The experimental results were obtained with the laser-induced fluorescence technique, while the numerical calculations were performed in a variety of nonrelativistic, semirelativistic, and fully relativistic R-matrix (close-coupling) calculations. Whereas there is qualitative agreement between the measured and predicted energy dependence of the angle-integrated cross section, significant uncertainties remain regarding the position and the height of the near-threshold maximum of the excitation function for the (3d{sup 9}4s{sup 2}){sup 2}D{sub 3/2} state. These uncertainties translate into difficulties regarding the absolute normalization of the relative experimental data to the theoretical predictions.
- OSTI ID:
- 21437896
- Journal Information:
- Physical Review. A, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.062705; (c) 2010 The American Physical Society; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ATOMS
COPPER
COUPLING
D STATES
ELECTRON-ATOM COLLISIONS
ELECTRONS
ENERGY DEPENDENCE
EXCITATION
EXCITATION FUNCTIONS
FLUORESCENCE
LASER RADIATION
R MATRIX
RELATIVISTIC RANGE
S STATES
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
FERMIONS
FUNCTIONS
LEPTONS
LUMINESCENCE
MATRICES
METALS
PHOTON EMISSION
RADIATIONS
TRANSITION ELEMENTS