Table 1.
PET isotopes employed in conjunction with folate derivatives—physical decay properties and production routes.
| Isotope | Half-life | Energyav β+ [keV] | Intensity [%] | Production Method | Folates Ref. |
|---|---|---|---|---|---|
| 18F | 110 min | 250 | 97 | cyclotron 18O(p,n)18F | [42,43,44,45,46] |
| 66Ga | 9.5 h | 1750 | 57 | cyclotron 66Zn(p,n)66Ga | [47] |
| 68Ga | 68 min | 830 | 89 | 68Ge/68Ga-generator | [48,49,50,51] |
| 152Tb | 17.5 h | 1080 | 17 | high-energy proton-induced spallation of tantalum targets (ISOLDE/CERN) | [52] |
| 44Sc | 3.97 h | 632 | 94 | (i) 44Ti/44Sc-generator (ii) cyclotron 44Ca(p,n)44Sc |
[53] |