title: Monte-Carlo simulation of photon transport in a heterogeneous phantom--I. Application to chest counting of Pu and Am.
mesh_terms: D000328:Adult; D006801:Humans; D008168:Lung / Q000033:anatomy & histology / Q000528:radiation effects*; D008954:Models, Biological; D008961:Models, Structural; D009010:Monte Carlo Method; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D012015:Reference Standards; D013909:Thorax / Q000033:anatomy & histology / Q000528:radiation effects; D014965:X-Rays