Scattering parameters for the electron impact excitation of the 5 {sup 1}D{sub 2} to 6 {sup 1}P{sub 1} transition in Ba
Journal Article
·
· Bulletin of the American Physical Society
OSTI ID:394314
- Univ. of Manitoba, Winnipeg, Manitoba (Canada)
Studies of electron impact excitation of excited state atoms are few in number and pose a new challenge for theory. The authors report on measurements of differential scattering parameters for the electron impact excitation of the (...6s6p {sup 1}P{sub 1}) state in barium from the metastable, isotropically populated, (...6s5d {sup 1}D{sub 2}) level at 20 eV impact energy. Five independent parameters are required to characterize this excitation (by unpolarized electrons); the differential cross section and four electron impact coherence parameters. The determination of these parameters was made by carrying out superelastic scattering studies involving electron impact de-excitation of the laser-excited (...6s6p {sup 1}P{sub 1}) state. The authors will discuss the novel laser excitation geometry and measurement scheme employed.
- OSTI ID:
- 394314
- Report Number(s):
- CONF-9605105--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 41; ISSN 0003-0503; ISSN BAPSA6
- Country of Publication:
- United States
- Language:
- English
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