Nuclide reference
Eu-146 — Europium-146
Eu-146 की half-life 4.59 d है। मुख्य decay mode: β⁺ decay / electron capture → Sm-146 (100%)।
Identification
- तत्व
- Europium (Eu)
- Atomic number Z
- 63
- Mass number A
- 146
- State
- Radioactive
Key quantities
- Half-life
- 4.59 d
- विशिष्ट गतिविधि
- 7.209e+15 Bq/g
- Gamma constant Γ
- —
- D-value (НП-067-24)
- —
Decay modes
- β⁺ decay / electron capture → Sm-146 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 747.159 | 98.5 |
| 634.137 | 45.01 |
| 40.119 · X-ray line | 39.11 |
| 633.083 | 35.85 |
| 39.524 · X-ray line | 21.61 |
| 510.999 · annihilation 511 keV | 9.291 |
| 665.424 | 7.23 |
| 1,533.71 | 6.077 |
| 1,297.03 | 5.388 |
| 430.386 | 4.718 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁺, E max | 1,477.7 | 2.24 |
| 1,476.7 | 2 | |
| 812.31 | 0.18 | |
| 1,046.3 | 0.108 |
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.