Accession Number:

AD0745135

Title:

The Measurement of Inner Shell Ionization Cross Sections for the 100-1000 EV Region as Involved with X-Ray and Electron Interactions within Solids,

Descriptive Note:

Corporate Author:

HAWAII UNIV HONOLULU DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s):

• Henke,Burton L.

Report Date:

1972-04-17

Pagination or Media Count:

78.0

Abstract:

In the low-energy region 100-1000 eV the measurement of photoelectric or electron-electron cross sections for atomic systems within solids is generally very difficult. Nevertheless, the transmission of monochromatic x rays or of monoenergetic no-loss electrons is almost completely determined by these cross sections in this energy region. In the work described, x-ray cross sections have been measured by both transmission and reflection electron ionization cross sections have been measured by photoelectron spectroscopy. An important characteristic of low-energy photoelectron spectroscopy is that only a few atomic layers are involved in the x-ray or electron interactions being measured. The general problem of experimentally determining ionization cross sections for the 100-1000 eV region is discussed. Author

Descriptors:

• (*IONIZATION
• SOLIDS)
• (*X RAY ABSORPTION ANALYSIS
• SOLIDS)
• ELECTRON IRRADIATION
• SURFACES
• DIFFERENTIAL CROSS SECTIONS
• ATOMIC ENERGY LEVELS

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE