Accession Number:

AD0608487

Title:

THE PHOTOIONIZATION OF SODIUM,

Descriptive Note:

Corporate Author:

QUEEN'S UNIV BELFAST (NORTHERN IRELAND)

Personal Author(s):

Report Date:

1964-01-01

Pagination or Media Count:

16.0

Abstract:

The photoionization cross-section of sodium was calculated for radiation of wave-length greater than 160A. In the case of the 3s - epsilon-p transition the bound and free wave functions were based on a potential in which a polarizability term and a term to allow for exchange are included. The contribution to the crosssection from the shell electrons was estimated by means of approximate formulae using HartreeFock wave functions for the initial states and Coulombic wave functions for the final states. Both the dipole length and the dipole velocity 3s - epsilon-p transition matrix elements were evaluated. The results obtained are in good accord, the former matrix elements leading to an absorption cross-section of 13.6 x 10 to the -20 power sq cm at the spectral head, the latter 12.6 x 10 to the -20 power sq cm. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE