X-Ray and Gamma-Ray Data
Note on the X-Ray Attenuation
Databases
- X-Ray Attenuation and Absorption for
Materials of Dosimetric Interest
- J. H. Hubbell and S. M. Seltzer
- Tables and graphs of computed photon mass attenuation coefficients and mass
energy-absorption coefficients from 1 keV to 20 MeV are presented for
all of the elements (Z = 1 to 92) and for 48 compounds and
mixtures of radiological interest. These coefficients are basic quantities used
in calculations of the penetration and the energy deposition by photons (x-ray,
gamma-ray, bremsstrahlung) in biological, shielding, and other materials.
- XCOM: Photon Cross Sections
Database
- M. J. Berger and J. H. Hubbell
- This database can be used to calculate photon cross sections for
scattering, photoelectric absorption and pair production, as well as total
attenuation coefficients, in any element, compound or mixture, at energies from
1 keV to 100 GeV. This is a web version of the PC based program XCOM
(also called NIST Standard Reference Database 8 - XGAM).
- Bibliography of Photon
Attenuation Measurements
- J. H. Hubbell
- This bibliography contains papers (1907-1995) reporting absolute
measurements of photon (XUV, x-ray, gamma-ray, bremsstrahlung) total
interaction cross sections or attenuation coefficients for the elements and
some compounds used in a variety of medical, industrial, defense, and
scientific applications. The energy range covered is from 10 eV to
13.5 GeV.
- X-Ray Form Factor,
Attenuation and Scattering Tables
- C. T. Chantler
- The primary interactions of x-rays with isolated atoms from
Z = 1 (hydrogen) to Z = 92 (uranium) are
described and computed within a self-consistent Dirac-Hartree-Fock framework.
The results are provided over the energy range from either 1 eV or
10 eV to 433 keV, depending on the atom. Self-consistent values of
the f1and f2 components of the atomic
scattering factors are tabulated, together with the photoelectric attenuation
coefficient [µ/]PE and the
K-shell component [µ/]K,
the scattering attenuation coefficient [µ/](coh + inc), the mass attenuation coefficient
[µ/]tot, and the linear
attenuation coefficient [µ]tot, as functions of energy and
wavelength. Also, f2, [µ/]PE, [µ/]tot, and [µ]tot are available for compounds.
- X-Ray Transition
Energies
- R. D. Deslattes, E. G. Kessler, Jr., P. Indelicato, L. de Billy, E. Lindroth, and J. Anton
- This X-ray transition table provides the energies and wavelengths for the K and L transitions
connecting energy levels having principal quantum numbers n = 1, 2, 3, and 4.
The elements covered include Z = 10, neon to
Z = 100, fermium. There are
two unique features of this database: (1) all experimental values are on
a scale consistent with the International System of measurement (the SI) and
the numerical values are determined using constants from the most recent
Recommended Values of the Fundamental Physical Constants: 1998
and (2) accurate theoretical estimates are included for all transitions.
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Online: August 1997 - Last update: September 2005
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