Table 1.
Radionuclides used with corresponding decay mechanisms and energies. Information populated from the Nuclear Science References database49. γ± denotes positron 511 keV photons upon annihilation.
| Radionuclide | β decay | β energy (average keV) |
γ emission |
γ energy (average) |
In vivo imaging modality |
|---|---|---|---|---|---|
| 3H | β− | 5.68 | - | - | |
| 35S | β− | 48.76 | - | - | |
| 177Lu | β− | 149.35 | γ | 208 | SPECT, CL |
| 32P | β− | 695.03 | - | - | |
| 18F | ε+β+ | 249.8 | γ± | - | PET, CL |
| 89Zr | ε+β+ | 395.5 | γ, γ± | 909 | PET, CL |
| 68Ga | ε+β+ | 836.02 | γ, γ± | 1077 | PET, CL |
| 90Y | β− | 933.7 | γ | 1761 | CL |
| 99mTc | - | - | γ | 140 | SPECT |