Nuclide reference
Tl-206 — Thallium-206
Tl-206 की half-life 4.202 min है। मुख्य decay mode: β⁻ decay → Pb-206 (100%)।
Identification
- तत्व
- Thallium (Tl)
- Atomic number Z
- 81
- Mass number A
- 206
- State
- Radioactive
Key quantities
- Half-life
- 4.202 min
- विशिष्ट गतिविधि
- 8.037e+18 Bq/g
- Gamma constant Γ
- —
- D-value (НП-067-24)
- —
Decay modes
- β⁻ decay → Pb-206 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 74.97 · X-ray line | 0.04433 |
| 72.807 · X-ray line | 0.02639 |
| 803.06 | 0.005 |
| 363.3 | 0.00013 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 1,532.3 | 99.89 |
| 365.9 | 0.11 |
For β⁻ the endpoint (maximum) energy of the spectrum is given. ENDF/B-VIII.0.
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.