Representation of the main dose quantities used in radiation protection based partly on Mattson and Soderberg: "Dose Quantities and Units for Radiation", Ch2 of "Radiation protection in nuclear medicine" Springer Verlag 2013. That in turn is based on ICRU report 57. This final graphic also incorporates an image by Rensselaer Polytechnic Institute entitled VIP-Man phantom developed by Dr. Xu and team at Rensselaer Polytechnic Institute in Troy, NY published in Wikimedia commons ref - Voxel Phantom - Visual Photographic Man (VIP-Man).jpg