Nuclide reference
Pa-230 — Protactinium-230
Pa-230 की half-life 17.4 d है। मुख्य decay mode: β⁺ decay / electron capture → Th-230 (92.2%)।
Identification
- तत्व
- Protactinium (Pa)
- Atomic number Z
- 91
- Mass number A
- 230
- State
- Radioactive
Key quantities
- Half-life
- 17.4 d
- विशिष्ट गतिविधि
- 1.207e+15 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 2 TBq / 0.07 TBq
- D-value (НП-067-24)
- 0.1 TBq
Decay modes
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 13 · X-ray line | 54.87 |
| 93.35 · X-ray line | 29.83 |
| 951.88 | 29.62 |
| 918.5 | 8.306 |
| 454.92 | 6.761 |
| 443.74 | 5.809 |
| 898.66 | 5.809 |
| 508.15 | 4.095 |
| 518.54 | 2.172 |
| 728.13 | 2.027 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 508.26 | 7.6 |
| 193.35 | 0.15 | |
| 124.8 | 0.046 |
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.