ZeCalc Algorithm Details
This report documents the implementation of the Java application ZeCalc (as released in version 3 on October 18, 2012), which calculates “Z e ”, a newly-defined “effective atomic number” for mixtures and compounds. Z e differs from the traditional Z eff in that it is based upon the x-ray cross section of the material, so it is more amenable to radiographic applications. Additionally, ZeCalc calculates ρ e , the volumetric electron density (with units of electron‐mol/cm 3 ), for materials with a specified composition and volumetric mass density, ρ m with units of g/cm 3 ).
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