Table 1 Physical properties of the positron-emitting radioisotopes 18F, 68Ga, and 64Cu [16]
18F | 68Ga | 64Cu | |
|---|---|---|---|
β+ yield (%) | 96.7 | 88.0 (1899 keV) | 17.4 |
1.1 (822 keV) | |||
Half-life (min) | 109.8 | 67.6 | 762 |
Maximum endpoint β+ energy (keV) | 633.5 | 1899.1 | 653.1 |
Average β+ energy (keV) | 249.3 | 836.0 | 278 |
Maximum range of positrons in water (mm) | 2.4 | 9.2 | 2.5 |
Mean range of positrons in water (mm) | 0.6 | 3.5 | 0.7 |