Comparison of Rhenium and Iodine as Contrast Agents in X-Ray Imaging

Figure 12

Depth absorbed dose profiles. Using Monte Carlo, the depth absorbed dose profiles were predicted for scans carried out (a) at 50, 80, and 120 kVp without additional filtration and (b) at 120 kVp with copper filters with thicknesses between 0.1 and 1.5 mm. The phantom was simulated as a 30 × 30 × 20 cm³ Solid Water® cuboid. The current was adjusted to simulate 8.5 × 10⁵ photons transmitted out of the phantom (i.e., reaching the detector).

(a)

(b)