Figure 1.
Radiophotoluminescent glass dosimeter (GD-301) measurement position.
Figure 2.
Gafchromic film measurement procedure.
Source and film are surrounded by a 25×25×25 cm3 phantom. Shown are set-ups for measuring (a) homogeneous solid water phantoms, (b) solid water-lung phantom interfaces, (c) bone phantoms, and (d) bone-lung phantom interfaces.
Figure 3.
Radial dose function comparisons.
Shown are simulation results for (a) comparison with Williamson and Li’s data and (b) radial dose functions in water, bone, and lung phantoms among the three Monte Carlo codes.
Figure 4.
Anisotropy functions for different materials.
(a) Bone at r = 1, 3, 5, and 10 cm; (b) water, bone, and lung at r = 10 cm; (c) lung at r = 1, 3, 5, and 10 cm.
Figure 5.
Comparisons of Monte Carlo anisotropy function simulation results with actual data for water, bone, and lung at r = 5 cm from source center.
Figure 6.
Comparison of Monte Carlo simulation results for radial dose function with GD-301 data for water, lung, and bone phantoms.
Figure 7.
Comparison of interface doses between (a) solid water phantoms and solid water-lung interfaces, (b) homogeneous bone phantoms and bone-lung interfaces.
Figure 8.
Isodose curves of (a) solid water, (b) solid water-lung interfaces, (c) bone, and (d) bone-lung interfaces.