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Dependence of scatter on atomic number for x rays from tungsten and molybdenum anodes in the mammographic energy range
Author(s) -
Aus R. J.,
DeWerd L. A.,
Pearson D. W.,
Micka J. A.,
Ng K. H.
Publication year - 1999
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.598625
Subject(s) - tungsten , molybdenum , anode , materials science , atomic number , range (aeronautics) , aluminium , atomic physics , analytical chemistry (journal) , physics , chemistry , metallurgy , electrode , composite material , quantum mechanics , chromatography
A study was done to determine the relative amounts of scatter for the following materials with atomic numbers ranging from Z = 6 to Z = 82 : C, Al, Ti, Fe, Cu, Zn, Zr, Y, Mo, Ta, and Pb. Measurements were performed for each material on two constant potential x‐ray units—one fitted with a molybdenum (Mo) anode–Mo filter and the other with a tungsten (W) anode–aluminum (Al) filter (medium filtration) at 30 kVp. Theoretical calculations were also performed for each anode to explain the scatter behavior and to aid in predicting the behavior for materials where measurements were not made. There was good agreement between the theoretical calculations and the experimental data.