A radiation physicist who coauthored NIST reference tables for X-ray and gamma ray interactions with John H. Hubbell. The mass energy-absorption data use his calculations to account for how much photon energy is retained after interaction processes. This supports radiation-energy deposition calculations alongside the separate mass attenuation coefficient used for beam transmission.[ref]
Tables of X-Ray Mass Attenuation Coefficients and Mass Energy-Absorption Coefficients by John H. Hubbell and Stephen M. Seltzer. Database abstract: Seltzer calculations and distinction between coefficient tables
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