Iodine-131 (I-131) is one of the most established and effective radioisotopes in nuclear medicine. With its dual beta and gamma emissions, it plays a crucial role in both diagnostic imaging and targeted radiotherapy, particularly for thyroid disorders and cancer treatment.
| Property | Details |
|---|---|
| Isotope | Iodine-131 (I-131) |
| Half-life | ~8.02 days |
| Decay Type | Beta (β⁻) and Gamma (γ) |
| Gamma Energy | 364 keV |
| Chemical Form | Sodium Iodide (NaI) in NaOH/Na₂S₂O₃ solution |
| Radiochemical Purity | ≥99% |
| Packaging Options | Sealed vial, capsule, or liquid form |
| Compliance | WHO GMP / ISO / IAEA standards |