Table 6.
Linear attenuation coefficients of the three ST phantom materials, skin, adipose tissue, and poP in units of mm−1 evaluated at four photon energies. The numbers in the round parentheses are the uncertainties in the last one or two significant figures of the corresponding value.
| Photon energy (keV) | XRF peak | POM | Resin | Wax | Skin (ICRU-44) | Adipose tissue (ICRU-44) | Plaster-of-Paris (poP) | Human cortical bone |
|---|---|---|---|---|---|---|---|---|
| 10.5 | Pb Lα | 0.43(2) | 0.30(4) | 0.14(4) | 0.468(5) | 0.270(3) | 3.10(17) | 4.69(5) |
| 12.6 | Pb Lβ | 0.243(10) | 0.17(2) | 0.083(17) | 0.277(3) | 0.162(2) | 1.85(9) | 2.79(3) |
| 14.1 | Sr Kα | 0.171(6) | 0.121(13) | 0.061(10) | 0.202(2) | 0.1204(12) | 1.34(6) | 2.03(2) |
| 15.8 | Sr Kβ | 0.123(4) | 0.089(8) | 0.047(6) | 0.149(15) | 0.0906(9) | 0.97(5) | 1.469(15) |