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Most frequently occurring nuclear reaction channels for positron emitter production in proton therapy.
| β+-emitter | Half-life (min) | Reaction channel | Threshold energy (MeV) |
|---|---|---|---|
| 15O | 2.037 | 16O(p,pn)15O | 16.79 |
| 11C | 20.385 | 12C(p,pn)11C | 20.61 |
| 14N(p,2p2n)11C | 3.22 | ||
| 16O(p,3p3n)11C | 59.64 | ||
| 16O(p,α d)11C | 27.50 | ||
| 13N | 9.965 | 16O(p,2p2n)13N | 5.66 |
| 14N(p,pn)13N | 11.44 | ||
| 30P | 2.498 | 31P(p,pn)30P | 19.7 |
| 38K | 7.636 | 40Ca(p,2p2n)38K | 21.2 |
