TABLE 1

Summary of Materials Used in Monte Carlo Simulation Model

Chemical composition (% by mass)
MaterialDensity (g/cm3)HCNONaPSClKOther
Air1.21 × 10−30.0175.523.21.3 (Ar)
Soft tissue1.0310.525.62.760.20.10.20.30.20.2
Lung tissue0.2610.310.53.174.90.20.20.30.30.2
Mammary gland1.0610.215.83.769.80.10.10.20.10.1
Adipose tissue0.9511.459.80.727.80.10.10.1
Water (CSF)1.0011.188.9
Cortical bone (40 y)1.923.415.54.243.50.110.30.30.2 (Mg), 22.5 (Ca)
Cartilage1.109.69.92.274.40.52.20.90.3
Red marrow1.0310.541.43.443.90.10.20.20.20.1 (Fe)
Yellow marrow0.9811.564.40.723.10.10.10.1