Nuclide reference
Pu-246 — Plutonium-246
Pu-246 की half-life 10.84 d है। मुख्य decay mode: β⁻ decay → Am-246m (100%)।
Identification
- तत्व
- Plutonium (Pu)
- Atomic number Z
- 94
- Mass number A
- 246
- State
- Radioactive
Key quantities
- Half-life
- 10.84 d
- विशिष्ट गतिविधि
- 1.812e+15 Bq/g
- Gamma constant Γ
- —
- D-value (НП-067-24)
- —
Decay modes
- β⁻ decay → Am-246m — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 1,078.86 (Am-246m) | 27.82 |
| 43.81 | 25 |
| 798.8 (Am-246m) | 24.84 |
| 223.75 | 23.5 |
| 106.47 · X-ray line | 20.35 |
| 14.6137 · X-ray line | 18.46 |
| 1,062.04 (Am-246m) | 17.16 |
| 1,036 (Am-246m) | 12.72 |
| 179.94 | 9.7 |
| 27.58 | 3.525 |
Includes daughter nuclides in equilibrium: Am-246m (yield per decay of Pu-246); the emitting nuclide is in brackets. Equilibrium is reached in about 2.9 h.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 177.26 | 91 |
| 1,302.1 (Am-246m) | 37.36 | |
| 1,539.3 (Am-246m) | 16.13 | |
| 1,276.1 (Am-246m) | 14.02 |
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.