Figure 6
Maximum surface absorbed dose resulting from imaging using the incident photon flux numbers from Fig. 5. (a) 1 mm of bone embedded in 5 cm of soft tissue. (b) 1 mm of adipose tissue embedded in 5 cm of soft tissue. (c) 1 mm of bone embedded in 5 cm of adipose tissue. (d) 1 mm of soft tissue embedded in 5 cm of adipose tissue. Imaging method: (1) absorption imaging using a crossed anti-scatter grid and no propagation phase-contrast enhancement; (2) ABI using Si(1,1,1); (3) ABI using Si(2,2,0); (4) ABI using Si(4,4,0); (5) ABI using Si(3,3,3). |