Nuclide reference
I-133 — Iodine-133
I-133 की half-life 20.8 h है। मुख्य decay mode: β⁻ decay → Xe-133 (97.15%)।
Identification
- तत्व
- Iodine (I)
- Atomic number Z
- 53
- Mass number A
- 133
- State
- Radioactive
Key quantities
- Half-life
- 20.8 h
- विशिष्ट गतिविधि
- 4.191e+16 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 0.7 TBq / 0.6 TBq
- D-value (НП-067-24)
- 0.1 TBq
Decay modes
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 529.872 | 87 |
| 875.329 | 4.507 |
| 1,298.22 | 2.349 |
| 510.53 | 1.827 |
| 706.578 | 1.505 |
| 1,236.44 | 1.505 |
| 856.278 | 1.244 |
| 680.247 | 0.6499 |
| 1,052.3 | 0.5559 |
| 617.974 | 0.5438 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 1,227.1 | 83 |
| 881.67 | 4.2 | |
| 458.76 | 3.8 | |
| 520.55 | 3.2 |
For β⁻ the endpoint (maximum) energy of the spectrum is given. ENDF/B-VIII.0.
Related calculators
इसी element के अन्य isotopes
Reference data vs computed valuesHalf-life, gamma lines and D-value are reference data (ENDF/B-VIII.0, НП-067-24).Gamma constant Γ 1 m पर H*(10) है, ICRP-107 spectra (NIST µ_en/ρ, ICRP-74 Table A.21) से गणना की गई, equilibrium में short-lived progeny सहित (जैसे Cs-137/Ba-137m, Ra-226 series); specific activity molar mass M ≈ mass number A का उपयोग करती है।