Appendix C: Composition and Material Constants of Tissue Equivalent Compounds and Mixtures (original) (raw)

Journal of the International Commission on Radiation Units and Measurements, 1983

Abstract

In this appendix the elemental composition of the most frequently used tissue-equivalent compounds and mixtures are listed as well as some of their material constants which are relevant for microdosimetry: mass energy transfer coefficients for photons of 100 keY to 10 MeV (Table C.3), kerma factors for fast neutrons of 11 keY to 20 MeV (Table C.4), stopping powers for electrons of 100 eV to 80 MeV (Table C.5), and for protons and alpha particles of 10 ke V to 100 Me V (Tables C.6 and C.7)11. All of the tables give the absolute material constants for ICRU tissue (ICRU, 1964), and, for all other compounds and mixtures, the relative material constants, relative to ICRU tissue. This was done in order to allow for a quick orientation as to the interactions and energy ranges for which a particular compound or mixture can be regarded as tissue equivalent.

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