Nuclide reference
Pu-236 — Plutonium-236
The half-life of Pu-236 is 2.858 years. Main decay mode: α decay to U-232 (100%).
Identification
- Element
- Plutonium (Pu)
- Atomic number Z
- 94
- Mass number A
- 236
- State
- Radioactive
Key quantities
- Half-life
- 2.858 years
- Specific activity
- 1.961e+13 Bq/g
- Gamma constant Γ
- —
- A1 / A2 for transport (SSR-6, НП-053-16)
- 30 TBq / 0.003 TBq
- D-value (НП-067-24)
- 0.1 TBq
Decay modes
- α decay → U-232 — 100 %
- spontaneous fission — 8.2e-8 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 17.1131 · X-ray line | 5.426 |
| 13.6085 · X-ray line | 4.987 |
| 47.57 | 0.065 |
| 108.95 | 0.0225 |
| 166.09 | 0.000735 |
| 643.87 | 0.000225 |
| 515.58 | 0.000163 |
| 563.19 | 0.000114 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| α | 5,767.5 | 69.1 |
| 5,720.9 | 30.8 | |
| 5,613.7 | 0.23 |
Related calculators
Other isotopes of this element
Reference data vs computed valuesHalf-life, gamma lines and D-value are reference data (ENDF/B-VIII.0, НП-067-24).Gamma constant Γ is H*(10) at 1 m computed from ICRP-107 spectra (NIST µ_en/ρ, ICRP-74 Table A.21) including short-lived progeny in equilibrium (e.g. Cs-137/Ba-137m, Ra-226 series); specific activity uses molar mass M ≈ mass number A.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.