Nuclide reference
Dy-165 — Dysprosium-165
Dy-165 की half-life 2.334 h है। मुख्य decay mode: β⁻ decay → Ho-165 (100%)।
Identification
- तत्व
- Dysprosium (Dy)
- Atomic number Z
- 66
- Mass number A
- 165
- State
- Radioactive
Key quantities
- Half-life
- 2.334 h
- विशिष्ट गतिविधि
- 3.011e+17 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 0.9 TBq / 0.6 TBq
- D-value (НП-067-24)
- 3 TBq
Decay modes
- β⁻ decay → Ho-165 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 47.548 · X-ray line | 4.938 |
| 94.7 | 3.8 |
| 46.701 · X-ray line | 2.772 |
| 361.68 | 0.904 |
| 633.415 | 0.6126 |
| 715.328 | 0.578 |
| 279.763 | 0.5343 |
| 545.834 | 0.1721 |
| 565.718 | 0.1364 |
| 620.635 | 0.1003 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 1,286.7 | 83 |
| 1,192 | 15 | |
| 291.61 | 1.7 | |
| 720.95 | 0.165 |
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.