NISTIR 5632 - Version History
- Disclaimer
Tables of X-Ray Mass Attenuation Coefficients
and Mass Energy-Absorption Coefficients
from 1 keV to 20 MeV for Elements
Z = 1 to 92
and 48 Additional Substances of
Dosimetric Interest*
- J. H. Hubbell+ and
S. M. Seltzer
- Ionizing Radiation Division,
Physics Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899
© 1989, 1990, 1996 copyright by the U.S. Secretary of Commerce on
behalf of the United States of America. All rights reserved.
NIST reserves the right to charge for these data in the future.
Abstract
Tables and graphs of the photon mass attenuation coefficient
 and the mass
energy-absorption coefficient  are presented for all of the elements
Z = 1 to 92, and for 48 compounds and mixtures of
radiological interest. The tables cover energies of the photon (x-ray,
gamma ray, bremsstrahlung) from 1 keV to 20 MeV. The
values are taken
from the current photon interaction database at the National Institute of
Standards and Technology, and the values are based on the new calculations by Seltzer
described in Radiation Research 136, 147 (1993). These tables of
and
replace
and extend the tables given by Hubbell in the International Journal of Applied
Radiation and Isotopes 33, 1269 (1982).
KEYWORDS: cross section, gamma-ray, mass attenuation coefficient,
mass energy-absorption coefficient, photon, x-ray
- Table of Contents
- 1. Introduction
- 2. X-Ray Mass Attenuation Coefficients
- Table 1. Material constants assumed
in the present evaluations for elemental media.
- Table 2. Material constants and composition
assumed in the present evaluations for compounds and mixtures.
- Table 3.
 Values of the
mass attenuation coefficient and the mass energy-absorption
coefficient as a function of photon energy, for elemental media.
- Table 4.
Values of the
mass attenuation coefficient and the mass energy-absorption
coefficient as a function of photon energy, for compounds and
mixtures.
- 3. The Mass Energy-Absorption Coefficient
- 4. Summary
- 5. References
*Work supported by the Standard
Reference Data Program of the National Institute of Standards and
Technology.
+Work carried out for the National Institute of Standards and
Technology under contract 43NANB412756.
April 1996
- U.S. DEPARTMENT OF COMMERCE
- Mickey Kantor, Secretary
- Technology Administration
- Mary L. Good, Under Secretary for Technology
- National Institute of Standards and Technology
- Arati Prabhakar, Director
   NIST Standard Reference Database 126
Inquiries or comments: Feedback
Online: May 1996 - Last update: July 2004
|
