Glossary of Terms and Definitions of Basic Quantities

The anthropomorphic reference computational phantoms of ICRP and ICRU are models of the human body presented and described in ICRP Publication 110 (2009), with the anatomical and physiological characteristics defined in ICRP Publication 89 (2002). Two reference phantoms have been defined for adults, a male and a female one. The models in ICRP Publication 110 are represented by arrays of cuboid voxels based on medical tomographic images in which the anatomy is described by small three-dimensional volume elements, of height 8.0 mm and of 2.137 mm × 2.137 mm in-plane cross section in the male phantom, and of height 4.84 mm and of 1.775 mm × 1.775 mm in-plane cross section in the female phantom. The collections of these voxels, along with recommended compositions and densities, are used to specify the organs and tissues of the human body and are specified in ICRP Publication 110 (2009).