Main description:

This report describes the development and intended use of the computational phantoms of the Reference Male and Reference Female. In its 2007 Recommendations, ICRP adopted these computational phantoms for forthcoming updates of organ dose coefficients for both internal and external radiation sources (ICRP, 2007). The phantoms are based on medical image data of real people, yet are consistent with the data given in Publication 89 (ICRP, 2002) on the reference anatomical and physiological parameters for both male and female subjects. The reference phantoms are constructed after modifying the voxel models (Golem and Laura) of two individuals whose body height and mass resembled the reference data. The organ masses of both models were adjusted to the ICRP data on the adult Reference Male and Reference Female, without compromising their anatomic realism. This report describes the methods used for this process and the characteristics of the resulting computational phantoms.

Contents:

Abstract Editorial Table of Contents Preface Main Points Executive Summary Glossary 1.Introduction 2. Specifications of the computational phantoms 3. Selection and segmentation of tomographic data 4. Modifications of segmented images to create reference computational phantoms 5. Description of the adult reference computational phantoms 6. Applications and limitations of the reference computational phantoms 7. References Appendix A: ID listings, medium, density, mass, minimum/maximum columns, rows and slices occupied by each organ/tissue (containing rectangular prism) and organ centres of mass. Appendix B: List of media and their elemental composition Appendix C: List of source regions, acronyms and ID numbers Appendix D: List of target regions, acronyms and ID numbers Appendix E: Distributions of depths of selected organs/tissues Appendix F: Chord-length distributions between selected organ pairs Appendix G: Cross-Sectional Images Appendix H: Selected Organ dose conversion coefficients - external photons Appendix I: Selected Organ dose conversion coefficients - external neutrons Appendix J: Selected Organ dose conversion coefficients - external helium ions Appendix K: Selected Specific absorbed fractions - photons Appendix L: Selected Specific absorbed fractions - electrons Appendix M: Summary of the CD Contents