Nuclide reference
Pu-238 — Plutonium-238
Pu-238 की half-life 87.7 years है। मुख्य decay mode: α decay → U-234 (100%)।
Identification
- तत्व
- Plutonium (Pu)
- Atomic number Z
- 94
- Mass number A
- 238
- State
- Radioactive
Key quantities
- Half-life
- 87.7 years
- विशिष्ट गतिविधि
- 6.337e+11 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 10 TBq / 0.001 TBq
- D-value (НП-067-24)
- 0.06 TBq
Decay modes
- α decay → U-234 — 100 %
- spontaneous fission — 1.86e-7 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 17.1131 · X-ray line | 4.977 |
| 13.6085 · X-ray line | 4.577 |
| 43.498 | 0.0392 |
| 99.853 | 0.00729 |
| 152.72 | 0.000929 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| α | 5,499 | 70.91 |
| 5,456.3 | 28.98 | |
| 5,357.7 | 0.105 |
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.