Yttrium-90
| Yttrium-90 | |
|---|---|
| General | |
| Name, symbol | Yttrium-90,90Y |
| Neutrons | 51 |
| Protons | 39 |
| Nuclide data | |
| Half-life | 64.1 h |
Yttrium-90, 90Y, is a medically significant isotope of yttrium.[1] Yttrium-90 has a wide and valuable use in radiation therapy to treat cancer.[2]
Decay
90Y undergoes β− decay to zirconium-90 with a half-life of 64.1 hours[3] and a decay energy of 2.28 MeV.[4] It also produces 0.01% 1.7 MeV[5] photons along the way. Interaction of the emitted electrons with matter can lead to Bremsstrahlung radiation.
Production
Yttrium-90 is a decay product of strontium-90 which makes up about 5% of the nuclear daughter isotopes when uranium is fissioned.[6][not in citation given] Yttrium-90 is produced by chemical high-purity separation from strontium-90, a fission product of uranium in nuclear reactors.[7]
See also
References
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External links
- CID 104760 from PubChem
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