Accession Number:

AD0731394

Title:

Electron Impact Cross Sections and Rates for Excitation and Ionization of Hydrogen and Hydrogenic Ions,

Descriptive Note:

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF ASTRONOMY

Report Date:

1971-05-01

Pagination or Media Count:

132.0

Abstract:

Semi-empirical electron impact cross sections and rates for excitation transitions of the type n to n and for ionization from all levels with principal quantum number n or 10 are given for hydrogen and for hydrogenic ions of any Z. The results for hydrogen agree with the well established data to within about 25. Those for hydrogenic ions are expected to be of comparable accuracy. Also semi-empirical cross sections and rates are given for transitions of the type nl to nl between the sublevels of the first three levels of hydrogen and hydrogenic ions. Coulomb-Born calculations were made for the 2l to 3l and 1s to 3l cross sections, which together with the other available cross section data were used in obtaining the semi-empirical results for hydrogenic ions. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE