Nuclide reference
Pb-214 — Lead-214
Pb-214 की half-life 26.8 min है। मुख्य decay mode: β⁻ decay → Bi-214 (100%)।
Identification
- तत्व
- Lead (Pb)
- Atomic number Z
- 82
- Mass number A
- 214
- State
- Radioactive
Key quantities
- Half-life
- 26.8 min
- विशिष्ट गतिविधि
- 1.213e+18 Bq/g
- Gamma constant Γ
- —
- D-value (НП-067-24)
- —
Decay modes
- β⁻ decay → Bi-214 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 351.932 | 35.6 |
| 295.223 | 18.42 |
| 77.109 · X-ray line | 9.904 |
| 241.995 | 7.251 |
| 74.817 · X-ray line | 5.917 |
| 53.2284 | 1.075 |
| 785.96 | 1.06 |
| 839.07 | 0.583 |
| 258.86 | 0.531 |
| 487.14 | 0.432 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 667.07 | 45.9 |
| 723.78 | 40.2 | |
| 1,019 | 11 | |
| 179.99 | 2.75 |
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।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.