Improved atomic data for electron-transport predictions by the codes TIGER and TIGERP. I. Inner-shell ionization by electron collision Page: 5 of 35
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to UNT Digital Library by the UNT Libraries Government Documents Department.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
ionization events or in the decay of inner-shell vacancies
produced by these ionization events. Also, fluorescence
produced in the relaxation of the inner-shell vacancies can
have an influence on the photon spectrum predicted for
energies less than about 50 keV.
The importance of the inner-shell electron ionization
cross sections is assessed for a limited class of problems.
A typical bremsstrahlung-converter problem is treated with
both the TIGER and TIGERP codes. This problem is discussed
in some detail. The discussion is intended to display data
that can be useful in analyzing transport problems not
considered here as well as documenting the present study.
The TIGER code treats only ionization from the K shell
while TIGERP considers the K, L, and M shells. The electron
ionization cross section for the K shell is different in the
two codes. In addition, data based on yet a third cross
section for electron ionization of the the K shell are
analyzed. Differences in the strength of the predicted
K-shell fluorescence lines are observed and these
differences are related to the electron ionization cross
sections used in the two codes. The TIGERP code also
predicts fluorescence photons and Auger electrons from the
relaxation of the L and M shells which is necessarily
ignored in the TIGER code. These differences are
quantified. In summary, these two codes are observed to
predict identical continuum, or bremsstrahlung, radiation
5
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Peek, James M. & Halbleib, John A. Improved atomic data for electron-transport predictions by the codes TIGER and TIGERP. I. Inner-shell ionization by electron collision, report, January 1, 1983; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1101863/m1/5/: accessed April 28, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.