Experimentally Measured Total X-ray Attenuation Coefficients Extracted fromPreviously Unprocessed Documents Held by the NIST Photon and Charged Particle Data Center

摘要

This report lists and annotates 47 previously unprocessed original-sourcedocuments held by the NIST Photon and Charged Particle Data Center (PCPDC), containing experimentally measured absolute values of the mass attenuation coefficient, or total photon interaction cross section for one or more elemental materials. The data from these documents had not been previously extracted for purposes of entering into the PCPDC x-ray attenuation measurement data base. Tables of the extracted data, with all photon energies converted to multiples of eV (electron volts), and all photon cross sections converted to units of barns/atom, are given. In some cases, photon wavelengths in angstroms or nm (nanometers) are given in the source documents instead of photon energies, in which case the reciprocal conversion to photon energies (in eV) has been made. A total of 3735 data points were extracted and are presented.