Nuclide reference
Ta-179 — Tantalum-179
Ta-179 की half-life 1.82 years है। मुख्य decay mode: electron capture → Hf-179 (100%)।
Identification
- तत्व
- Tantalum (Ta)
- Atomic number Z
- 73
- Mass number A
- 179
- State
- Radioactive
Key quantities
- Half-life
- 1.82 years
- विशिष्ट गतिविधि
- 4.06e+13 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 30 TBq / 30 TBq
- D-value (НП-067-24)
- 6 TBq
Decay modes
- electron capture → Hf-179 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 55.784 · X-ray line | 22.42 |
| 54.606 · X-ray line | 12.69 |
| 7.88378 · X-ray line | 9.777 |
| 9.10306 · X-ray line | 8.666 |
| 63.237 · X-ray line | 4.614 |
| 62.981 · X-ray line | 2.387 |
| 10.6819 · X-ray line | 1.5 |
| 64.965 · X-ray line | 1.039 |
| 6.96785 · X-ray line | 0.785 |
| 64.907 · X-ray line | 0.5369 |
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।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.