Nuclide reference
Hg-194 — Mercury-194
Hg-194 की half-life 444 years है। मुख्य decay mode: electron capture → Au-194 (100%)।
Identification
- तत्व
- Mercury (Hg)
- Atomic number Z
- 80
- Mass number A
- 194
- State
- Radioactive
Key quantities
- Half-life
- 444 years
- विशिष्ट गतिविधि
- 1.536e+11 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 1 TBq / 1 TBq
- D-value (НП-067-24)
- 0.07 TBq
Decay modes
- electron capture → Au-194 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 328.464 (Au-194) | 60.4 |
| 66.831 (Au-194) · X-ray line | 39.79 |
| 65.123 (Au-194) · X-ray line | 23.29 |
| 293.548 (Au-194) | 10.58 |
| 1,468.88 (Au-194) | 6.608 |
| 2,043.68 (Au-194) | 3.805 |
| 510.999 (Au-194) · annihilation 511 keV | 3.449 |
| 645.152 (Au-194) | 2.338 |
| 948.31 (Au-194) | 2.277 |
| 1,886.89 (Au-194) | 2.235 |
Includes daughter nuclides in equilibrium: Au-194 (yield per decay of Hg-194); the emitting nuclide is in brackets. Equilibrium is reached in about 11 d.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁺, E max | 1,479 (Au-194) | 1.13 |
| 1,150.5 (Au-194) | 0.59 |
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.