Nuclide reference
Ba-133 — Barium-133
Ba-133 की half-life 10.516 years है। मुख्य decay mode: electron capture → Cs-133 (100%)।
Identification
- तत्व
- Barium (Ba)
- Atomic number Z
- 56
- Mass number A
- 133
- State
- Radioactive
Key quantities
- Half-life
- 10.516 years
- विशिष्ट गतिविधि
- 9.457e+12 Bq/g
- Gamma constant Γ (H*(10))
- 0.08952 µSv·m²/(MBq·h)
- Dose rate, 1 GBq at 1 m
- ≈ 89.5 µSv/h
- परिवहन के लिए A1 / A2 (SSR-6)
- 3 TBq / 3 TBq
- D-value (НП-067-24)
- 0.2 TBq
Decay modes
- electron capture → Cs-133 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 30.972 · X-ray line | 64.93 |
| 356.013 | 62.05 |
| 30.625 · X-ray line | 35.16 |
| 80.9971 | 34.06 |
| 302.851 | 18.33 |
| 383.848 | 8.94 |
| 276.4 | 7.164 |
| 79.6139 | 2.62 |
| 53.1625 | 2.199 |
| 160.611 | 0.645 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Related calculators
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।Dose rate example: point source, no shielding or scatter, Ḣ = Γ·A/r².K-series X-ray energies are from NIST SRD 128 (Deslattes et al., 2003): in ENDF/B-VIII.0 they are given to 1 % and shifted by up to 0.7 keV for heavy elements. L-series lines and all yields are ENDF/B-VIII.0.