Effective atomic numbers, water and tissue equivalence properties of human tissues, tissue equivalents and dosimetric materials for total electron interaction in the energy region 10 keV-1 GeV

摘要

Effective atomic numbers (Ze//) of 107 different materials of dosimetric interest have been calculated for total electron interactions in the wide energy region 10 keV-1 GeV, The stopping cross sections of elements and dosimetric materials were used to calculate Zejf of the materials. Differences (%) in Ze# relative to water have been calculated in the entire energy region to evaluate the water equivalency of the used materials. Moreover, the tissue equivalent materials have been compared with the tissues and dosimetric materials in terms of Ze# to reveal their ability to use as tissue substitutes. Possible conclusions were drawn based on the variation of Z_(EFF) through the entire energy region and water and tissue equivalency comparisons in terms of Z_(EFF).