Accession Number:
AD0739166
Title:
Photo-Equilibrium of Barium
Descriptive Note:
Environmental research papers
Corporate Author:
AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA
Personal Author(s):
Report Date:
1971-11-30
Pagination or Media Count:
38.0
Abstract:
A model for numerical simulation of the solar pumping of a simple atomic system is constructed and compared with the exact analytical solution. The process is then extended to cover the more complex 5-level 5-transition barium ion term scheme and the 61-level 86-transition barium neutral term scheme. An advantage of the step-wise simulation is that in addition to yielding the equilibrium relative level populations and transition intensities, it also permits the dynamic grow-in to equilibrium to be studied. The neutral barium system has also been studied with the inclusion of photoionization from each of several metastable levels.
Descriptors:
Subject Categories:
- Atmospheric Physics
- Atomic and Molecular Physics and Spectroscopy