“…These phantoms consist of the ICRU tissue of density 1 g•cm -3 and are composed of 76.2% oxygen, 11.1% carbon, 10.1% hydrogen and 2.6% nitrogen. 1,2,11,18, 19 The number of particles about 1×10 8 were incident on the phantom, in order to have a statistical uncertainty lower than 1%.…”