MEASUREMENT OF THE ABSOLUTE 4D-PHOTOABSORPTION CROSS-SECTION OF ATOMIC BARIUM

Authors
VONDEMBORNE A FEDERMANN F LEE MK SONNTAG B
Citation
A. Vondemborne et al., MEASUREMENT OF THE ABSOLUTE 4D-PHOTOABSORPTION CROSS-SECTION OF ATOMIC BARIUM, Journal of physics. B, Atomic molecular and optical physics, 28(13), 1995, pp. 2591-2598
Citations number
21
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
Journal title
Journal of physics. B, Atomic molecular and optical physics → ACNP
ISSN journal
09534075
Volume
28
Issue
13
Year of publication
1995
Pages
2591 - 2598
Database
ISI
SICI code
0953-4075(1995)28:13<2591:MOTA4C>2.0.ZU;2-9
Abstract
The absolute photoabsorption cross section of atomic barium in the reg ion of the 4d-giant resonance (80-140 eV) has been determined. The vap our density in the absorbing metal vapour column, required for the det ermination of the absolute cross sections was measured quasi-simultane ously with the absorption using a Mach-Zehnder interferometer. Our dat a show good agreement in terms of spectral signature with existing rel ative photoabsorption measurements. The measured absolute cross sectio n corroborates the results of recent many-body calculations.