Table 3.
Biodegradable implant materials and their linear attenuation coefficients (cm−1) of 511 keV photons.
| Type | Material | Attenuation Coefficient at 511 keV |
|---|---|---|
| Metals | Mg | 0.15 |
| Fe | 0.64 | |
| Zn | 0.58 | |
| Ti | 0.36 | |
| Ceramics | Hydroxy- apatite | 0.27 |
| DCPD | 0.20 | |
| Brushite | 0.21 | |
| TCP | 0.27 | |
| TeCP | 0.27 | |
| Bioglass | 0.23 | |
| Polymers | poly(γ-benzyl-L-glutamate) | 0.11 |
| Polypropylene fumarate | 0.11 | |
| Polylactide | 0.11 | |
| Poly- glycolide | 0.14 | |
| Polyhydroxy-butyrate | 0.11 | |
| Polyhydroxy-valerate | 0.11 | |
| Polycapro- lactone | 0.11 | |
| Poly- dioxanone | 0.12 | |
| Tissues | Cortical bone | 0.17 |
| Skeletal muscle | 0.10 |