X-ray attenuation coefficients (total cross sections): Comparison of the experimental data base with the recommended values of Henke and the theoretical values of Scofield for energies between 0. 1-100 keV

Technical Report · Tue Jul 01 04:00:00 EDT 1986

OSTI ID:6965777

Saloman, E B; Hubbell, J H

A comparison is carried out, in both graphical and tabular form, over the energy range 0.1 to 100 keV between the National Bureau of Standards' data base of experimental x-ray attenuation coefficients (total absorption cross sections) and cross sections obtained using two sets of photoionization cross section values: the semi-empirical set of recommended values produced by Henke et al. which covers the energy range .03 to 10 keV; and a theoretical set calculated by Scofield which covered the range 1 to 1500 keV and was extended by Scofield, at our request, to also cover the 0.1 to 1 keV range. There has been some disagreement over whether Scofield's results should be subject to renormalization from a Hartree-Slater to a Hartree-Fock atomic model. Therefore in the tables a comparison is made of Scofield's predictions both with and without this renormalization. 10 refs.

• Research Organization: National Bureau of Standards, Washington, DC (USA). Center for Radiation Research
• OSTI ID: 6965777
• Report Number(s): NBSIR-86-3431; ON: DE87003057
• Country of Publication: United States
• Language: English

Related Subjects

640300* -- Atomic
Molecular & Chemical Physics
74 ATOMIC AND MOLECULAR PHYSICS
ATTENUATION
COMPILED DATA
CROSS SECTIONS
DATA
ELECTROMAGNETIC RADIATION
ENERGY RANGE
EV RANGE
EV RANGE 100-1000
EXPERIMENTAL DATA
INFORMATION
INFORMATION SYSTEMS
IONIZATION
IONIZING RADIATIONS
KEV RANGE
KEV RANGE 01-10
KEV RANGE 10-100
NUMERICAL DATA
PHOTOIONIZATION
RADIATIONS
THEORETICAL DATA
TOTAL CROSS SECTIONS
X RADIATION